Another US software developer has taken a hit, apparently for not noticing that while corporate USA is largely Mobile Windows and BlackBerries with a smattering of Palm, the rest of the world is a bit different. Specifically, we have Symbian - and quite a lot of it.

The company in question is Credant, a Texas-headquartered developer of security software for networked mobile devices. Last year it agreed an OEM deal with Extended Systems, which saw Credant's Mobile Guardian software adopted into Extended's OneBridge family of mobile connectivity software as OneBridge Mobile Secure.

Extended Systems has just announced version 2 of OneBridge Mobile Secure, but this is not just an update - it's actually a whole different product. It is now reselling security software from Stockholm-based Pointsec instead.

There are several reasons for this, says Extended. One is Pointsec's relatively high profile in the mobile device security market, with Gartner positioning it as a leader in its Magic Quadrant report on mobile data protection earlier this year.

Pointsec also has some neat technology, such as Picture PINs: instead of a 1-9 keypad on the screen, it presents a grid of little icons, for example a cup, a stick-man and a laptop, and you make up a memorable story to go with your code, such as "man spills coffee on laptop". It also shuffles the icons around between uses, so it's no good "shoulder-surfing" - watching someone, then trying to copy their finger movements.

But the real story is that OneBridge Mobile Secure now has the Symbian support that Credant's version 1 lacked - although curiously, it has at the same time lost its support for BlackBerry.

The demand for Symbian support should be no surprise to anyone who watches the mobility market world-wide. SonyEricsson's P8000 and P900 family of smartphones have been huge hits with many business users, Nokia is putting its Series 60 software into more and more smartphones, and both of these are of course Symbian-based.