Looks like Google is rolling out an official 2.2 Froyo update to nexus one users. Now, its not apparent if this is just an update for those that used the leaked android build, or if this update will actually roll out to all nexus one users, but it would make sense considering that Google just opened up the Froyo 2.2 source today. I have not yet received this update myself on my Nexus one (T-Mobile Nexus on Rogers), but Ill be sure to keep everyone posted. There’s also a XDA Developers thread that you might want to follow as well.