We first met the HTC Desire S at MWC in Barcelona, back in February earlier this year. As the natural successor to the HTC Desire. We saw performance improvements in terms of a better GPU, bigger amounts of RAM and ROM, and faster connectivity, but that aside, the step up wasn't as dramatic as we'd have liked.
Once it launched, the Desire S came running Android Gingerbread 2.3.3 and HTC's Sense 2.1 UI out of the box. The latest development however is that the next update for the Desire S, has started rolling out without so much as a whisper. Users in the UK are reporting that they've noticed the update innocuously popping up on their devices since the last day of September.
As with any ROM update, when you get the all important notification isn't exactly set in stone. The update appears to be coming to users in the UK with stock Desire S ROMs, so carrier specific variations will, as usual take a little longer.
With this update, not only does your S get a boost from Gingerbread 2.3.3 to 2.3.5, but Sense UI moves up to 3.0 which means key updates like the interactive lock screens, new animations, an updated launcher as well as a host of new widgets, the latest version of the Android Market and access to HTC's Watch service. Users are also reporting better GPS performance.
Back in May, at Google I/O, it was said that Android devices, at least from a group of selected manufacturers and carriers, would receive full support for at least 18 months after a device's launch. In this instance, it seems HTC are most certainly making good on that promise. We've had no word on carrier locked ROMs and when the update will spread overseas, but if you notice anything, let us know.
Source:http://www.gsmarena.com/htc_desire_s_gets_gingerbread_235_and_sense_30-news-3212.php