Flash at your own risk. If you flash this, I cannot help you if anything goes wrong.
Calling - totally fixed now thanks to h8rift
SMS + MMS
Multitasking is greatly improved
Mounting internal storage
Mount phone as USB storage for computer
App switch button remapped as menu
What doesn't work:
Panorama mode in Camera app
Device tree available on Github here: https://github.com/vmagro/android_device_htc_evita
To clone the source use this as your repo url (it will download my device tree and all of the other repos that are changed from stock CM9) git://github.com/vmagro/android.git
Download and installation notes in 2nd post, screenshots in 3rd post.
xkonni and intervigil