BlackBerry, formerly RIM, officially announced its first BlackBerry 10 smartphones, the Z10 and Q10, at a series of elaborate press events across the globe yesterday. Like many BlackBerry users and smartphone enthusiasts, I have been waiting for BlackBerry 10 for a long time. The fate of RIM and BlackBerry depend on the success, or lack thereof, of the BlackBerry 10 platform. If both BlackBerry 10 and RIM's two new handsets fail to wow potential users, it could be the final nail in the coffin for the company.

I was fortunate enough to get a BlackBerry Z10 from RIM last week, and the device barely left my hands since I got it - except, of course, when I was sleeping, and even then it was only a foot or two away. I put the BlackBerry Z10 through all the paces and I found a lot to like, even love. But RIM's new BlackBerry is not perfect, and one area in particular has me disappointed.

BlackBerry Z10

The question everyone wants answered: Can BlackBerry 10 save RIM and get BlackBerrys into the hands of the iOS-or-Android-toting masses? The following review breaks down everything you need to know about RIM's first BlackBerry 10 smartphone, the Z10, and answers that question.

The all-touch BlackBerry Z10 will be available first here in the UK from today on a number of carriers. And the Z10 will be released in Canada on February 5. Unfortunately, the device will not be available in the United States until March, though RIM did say all four major US carriers will carry the Z10. Pricing information will vary based on carrier and country. (BlackBerry CEO Thorsten Heins also said the Q10, which has a physical QWERTY keyboard, is expected in April.)

First up, the good stuff about the BlackBerry Z10 and the BlackBerry 10 software.

BlackBerry Z10 positives

BlackBerry Z10 hardware slick and built to last

When I first saw leaked images of the BlackBerry Z10, I was not particularly impressed with its hardware design. But I admit that my first impressions were off base; The Z10 hardware is quite elegant looking, and both well-made and functional.

It has a beautiful, crisp 4.2-inch LCD display with a 1280 x 768 resolution at 356 DPI. In comparison, Apple's iPhone 5 has a smaller, 4in display with 1136 x 640 resolution at 326 PPI. And Samsung's Galaxy SIII's display is larger at 4.8in, but it has a slightly lower, 1280 x 720 resolution. Higher screen resolution doesn't necessarily mean a better overall visual experience, but to my eye the BlackBerry Z10's display is on par with or better-looking than the competition.

The BlackBerry Z10 looks a lot like the iPhone 5. It is similarly long and narrow with rounded-off corners. And it is flat and boxy, unlike the Galaxy SIII and other high-end devices that have notably-curved or contoured rear sides. At 9mm thick, the BlackBerry Z10 is a bit thicker than the 7.6mm iPhone 5. The Z10 is also slightly heavier than the iPhone 5 and Galaxy SIII, but its thickness and weight don't make it feel clunky.

BlackBerry Z10

The BlackBerry Z10 is also built to last. It has a thick-plastic bezel that encircles the device and covers its top, bottom and corners, so the glass display doesn't actually reach its edges. This adds a bit of bulk to the device, and you get less screen size than if the display took up the entire front surface, as is the case with Samsung's Galaxy SIII and Galaxy Note II. But those devices are more susceptible to screen breakage, and if they fall and land on a corner their screens could easily break.

The Z10's bezel helps to protect the corners and sides of the display. And the screen itself is seated in another layer of thin plastic, so the glass doesn't extend all the way to its sides. The Z10's battery door is covered in tiny plastic dots, which gives it some texture and style and also makes the cover "sticky" so it doesn't slide too much when placed on a desk or other surface. The battery cover is easy to remove and replace, and it fits sturdily without any slippage or related "creaking."

The device has a removable 1800-mAh battery, something I definitely appreciate. I travel frequently, and I've yet to find a device with a battery that lasts a full day of travel with heavy use. So handsets with fixed batteries just don't cut it for me.

The Z10 comes with 16GB of built-in Flash storage, but it also supports microSD media cards up to 32GB, for a total possible capacity of 48GB. You can remove and replace the memory card without powering down the handset. The BlackBerry Z10 has 2GB of RAM and a dual-core, 1.5GHz processor. I've been using the Z10 for more than a week now, and I've seen little or no notable lag. I purposely tried to open as many apps as possible - the Z10 can run 8 apps at a time - to see if I they affected device performance, but the Z10 stood up to the tests and performed well.

The device has standard headset- and micro-USB-ports, which means you don't need any sort of proprietary headphones or charging cords. The same cannot be said for all of the popular devices on the market. The Z10 also has a standard mini-HDMI port, which makes it easy to connect your device to an HDTV or monitor to watch videos, listen to HD-quality audio, share a presentation or show anything else on your device's display. (The Z10 does not come with a mini-HDMI to HMDI cord, though.)

The Z10's speaker is loud and provides relatively clear audio, so it works well for speakerphone calls. Call quality was average or better in my experience using AT&T's network in and around Boston. The Z10's cellular radio didn't drop a single call, and at one point I placed a six-hour test call to evaluate battery life.

On the subject of battery, RIM says the device should get up to 10 hours of talk time on 3G. I placed my test call in an area with full LTE coverage and full HSPA+ coverage, and my device showed the 4G icon during my call. I only got 6 and half hours of talk time before my Z10 powered down. As for normal, daily use - frequently checking email, using apps and placing the occasional call - on LTE and Wi-Fi where available, I got more than 16 hours of battery life, which is more than I get from my Galaxy SIII.

BlackBerry Z10

The device I reviewed is an AT&T BlackBerry Z10, and it runs on the carrier's LTE network, making it the first LTE BlackBerry smartphone. And as is standard for high-end smartphones today, the Z10 has Wi-Fi and Bluetooth. It also has NFC, and it comes with a Smart Tags app that lets you customize your own NFC tags to launch web pages or frequently-used apps or services.

The volume-up and volume down keys for the Z10 are on one side, with a mute key between them. The keys can be used to adjust call volume, media volume and to mute calls. You can hold the volume-up and volume-down keys while listening to music to skip through tracks. And holding down both keys simultaneously for a couple of seconds captures a screen shot. A single button atop the device puts it to sleep, restarts and powers it down, depending on how long you hold the key and what on-screen options you choose.

Now, on to what I liked about the brand-spankin' new BlackBerry 10 software....

BlackBerry 10 software innovative and efficient

RIM's BlackBerry 10 software is composed of three main UI components: Application home screens, which show all of the applications on your device, and any folders you create to organize them; an Active Frames screen, which shows open apps in dynamic windows that change and update with new information; and the "BlackBerry Hub," a central inbox where you find all of your various messages and notifications. RIM calls the process of navigating through these components "BlackBerry Flow."

The heart and soul of BlackBerry 10 is the BlackBerry Hub and it's a standout feature. You can easily access the BlackBerry Hub when you're using a specific application or while you're navigating home screens by sliding your thumb up from the bottom of the display and then to the right, to pull the active page to the side and "peek" at your Hub. If you want to open a message or notification you just continue your thumb's leftward motion until the Hub takes up your entire display and click on the message or notification of your choice. If there are no pressing messages, you can slide your thumb back to the right and return to whatever you were doing.