HTC Sense has a new ROM for Android 2.2. The Gratious Slide 0.8 has been leaked out from a Chinese source!
Unfortunately, the language is in Chinese as well, so you’ll need to change that once you’ve got it running. To do that, When it’s done booting, go to settings then scroll down to the A symbol, press the first option, then select english.
A couple of things to note as well, with any ROM install, obviously be cautious by backing up any data first. Another item to note is that there are known issues with the Wi-Fi capabilities after using the HTC Gratia ROM.