2.2 seems to work great, even more responsive than 2.1. Like everyone else, I, too, have the issue with the SD card not mounting. WiFi works, at least with Static IP. I've read about issues with DHCP, which my home network doesn't use anyway. I was able to sync with my Google Apps calendar without a problem.
I have not tried data, since my prepaid plan charges obscene rates for it. Bluetooth seems to yield the same results as it did in 2.1. It pairs, but audio is choppy, and AVRCP doesn't work.
Calls and text messages go through quickly, and I can hear the ringtone.
If it weren't for issues with BT and the SD card, I would be switching to Android on my phone in a heartbeat.
Keep up the good work!
