The second iPhone 3.0 Beta is now available, and developers can go download it immediately from Apple's iPhone dev page. Updated.
Update: A developer reader tells us that it does feel much snappier, especially in the scrolling area.
He also says that there's a new Store area in the Settings, which is kinda mysterious because there's nothing there.
Update 2: Push notifications now work, and developers can start making apps with it. AND, Skype still works over 3G.