While we are excited to get our hands on things like Google Street View and Podcast direct downloads (no push notifications?!), the iPhone Dev Team warns us that upgrading an EDGE OR 3G iPhone to 2.2 will break the jailbreak and activation. They expect to have an update out shortly to adress this.
Now that we've performed our civic duty to warn jailbreakers, let's look at what the new update has in store for us: