Yahoo!, a worldwide provider of Internet services, has launched Yahoo! Search for iPhone and iPod touch.The free application is billed as an all-in-one search tool for those on the go.

According to Yahoo, their app offers the following features:

Local Maps: Get maps tied to your location; place a phone call or get directions with one tap.

Search Assist: Offers instant, local suggestions as you type.

Best of Yahoo!: Get results from Yahoo! Sports, News, Finance, Movies - designed just for the iPhone.

Voice search: For making search easier and faster.

Local Businesses Photos: View photos, ratings, phone numbers, and more from Yahoo! Local, Yelp! and Citysearch.

Personalised information: Tailored results that get better the more you search.

Fast queries: Get site summaries at a glance with Quick Load.

"My Log": Offers quick access to recent searches and local business results.

Shake to clear: Start a new query with a shake of your iPhone.

Available in 22 markets across North America, Latin America, Europe, and Asia via the Apple iTunes App Store, the app requires the iPhone 3.0 Software Update or later.

Yahoo! has also this week introduced Sketch-a-Search for iPhone and iPod touch. "You simply draw a boundary on your phone's map to discover local businesses within that location," says the press release. "Initially available for restaurant searches in the US, Yahoo! Sketch-a-Search will launch additional local categories on an ongoing basis and will extend to international markets in the near future."