first apple says the SDK is to be "unveiled" in Febuary (Unveiled not release, apple are always careful with wording) now the invites to the march 6th event say "Please join us to learn about the iPhone software roadmap" not the release of the SDK, and the invite clearly depicts a picture with enterprise support which will be out at that time i guess, then SDK release (for devs), then software update (for end users (iphone / touch) So i wouldnt get to excited just yet, this is a preview in my opinion, then the sdk will be released to devs and then later on the apps will come with a future update. Just the way im seeing things, Still it will be nice to see whats to come on the 6th, a nice preview, I'm patient.