Hey guys, new here after looking around for a few months.
I have a D2G as well and decided to try out the DROID2 version of CM7 on here with some replaced system files from the D2G Romer. I can report that radio is working, but no data. Microphone seems to work in Sound Recorder, but I haven't been able to test it in a call yet.
A huge issue is that it's quite unstable (just using the Browser app causes it to crash the whole thing and reboot) and when the phone goes to sleep, once it wakes up, it just shows a blank screen (but you can get it to unlock by opening the keyboard fully and closing it). Also, for some reason, the keyboard's absolutely tiny (I'll post a screenshot if needed).
Update: Sound is working, it turns out the problem was that I actually did replace something, and that caused it not to work. Whoops.
Also, the accelerometer is completely off. To get it to show portrait, I have to put the phone on the right side, but this is fine since I can disable automatic rotation.
Update 2: Now the lockscreen seems to be working fine...?
Update 3: Found out why the Browser app is crashing. When it goes to Google's page, it attempts to init GPS, GPS can't init, causes the phone to crash. Just had the same issue in the application "Tricorder".
If there's anything you want me to try, I'll be willing to do so.