Android Open Kang Project builded for HTC Vision (Desire Z/G2). It's an Android rom with a lot of modifications and tweaks.
AOKP milestone 6 is so much better than the Cyanogen 7.2 Rom (based on Android 2.3) that I was using. While I appreciated the efforts of Cyanogen, it was simply much glitchier than I've found AOKP to be. Also, I was disappointed that Cyanogen abandoned the Vision and similar devices (for instance Nexus 1) for Android 4. Thanks to the dev who ported AOKP to Vision. It works very well. I initially had an inoperable camera, but simply wiping the cache fixed it. I haven't found any other problems. The phone is so much more responsive than it used to be, and doesn't require a daily reboot like my previous ROM did. Also, Google has done a great job with Android 4, it looks much more modern than 2.3 did.