I have found that some of the widgets that come with some of my apps are missing.
Brightness Level 2.2.0 the widget is missing
TeslaLED 2.0.4 the widget is missing
As already stated Google Maps wont update but I don't think this is a big issue. The app works.
Battery life has been cut in half, but I think this is because the phone is running at a higher frequency.
I still love the ROM! I have not had any Force Closes since I flash to SD2.2.2 and that was the big problem that I was having with the stock ROM.