whoa... I didn't realize this was going to be so different. I have to set the phone up all over again. Do you know what will happen when I use google play to download apps? Will GP know that I'm now running 2.3 or will it continue to tell me the apps I want are incompatible with my phone?
Yep, Google Play will see your Android version number on that device and show you apps that are compatible (or not) with it.
, so it would be more appropriate to ask your questions in some of our existing CM7 discussion threads that you could resurrect that might ping the folks that used to (or still do) use it.