I'm gonna close this thread for several reasons:
a) Only the Nexus One has 2.1 so far, everyone else is still waiting for it
b) Although Google has stated they are working on 'Froyo', the next version of the android OS, there is no evidence that it will be 2.2. Could be 2.1.1 could be 2.5, could be 3.0.
c) The title is misleading and may make soem users think there is information on it.