Just 3 days before the big, final, fantastic launch of iOS 4 and we have all been patiently waiting(hopefully you aren't ripping your hair out). Recently, we've been seeing some apps pop up in the App Store that are optimized for iOS 4. This means you "GM-builders" can play around with some of the new features.
Apps like Fandango, FlightTrack, Dropbox, and many other are ready to go. Apple started accepting these updates and apps one week ago. Mr. Steve might actually be following through with his word about accepting applications within a week. Don't be surprised if your application takes long to be accepted if it doesn't show of iOS 4 goodness. :ios4:
Source: ModMyI