New versions of some of Google’s official Android apps have leaked online and also been made available for download.
The highlight is probably a new version of the default Android Music Player which has been brought in line with it’s Honeycomb counterpart. There is a greater emphasis on album art and there’s also a new coverflow type mode when you flip your phone into landscape orientation.
There are also new camera, gallery and desk clock apps. I didn’t notice any major changes in the former and the later two failed to work on my Desire although you may have more luck.