HTC announced the successor to the original Desire, the Desire S at MWC this year. Compared to the predecessor, the S sports a faster CPU and GPU, along with more RAM and internal memory. When announced, the handset ran Android 2.3 Gingerbread, with Sense v2.1.

Now, it looks like HTC have started rolling out a new software update for the Desire S, which bumps the Android OS version to 2.3.5. The update also brings the latest version of Sense UI to the Desire S, which is quite surprising. The Sense v3.0 UI sports some nifty features like a lock screen with shortcuts, new animations and an updated launcher.

The update also brings some new widgets including Clock, Weather and Photo grid widgets, the latest version of Android Market, Calendar app and new Live Wallpapers. Post the update; Desire S owners can also use HTC’s Watch service. Users are also reporting a massive improvement in GPS performance.

It will be interesting to see how the new version of Sense affects the performance of the phone. The Sense 3.0 UI was considered to be a major culprit for all the lags and slowdowns on the dual-core powered HTC Sensation.