The first screenshots of iPhone OS 3.0 appeared in the network, the firmware presented at the press conference has a lot of new things . Under the cat a lot of screenshots taken with the iPhone 3G and the second generation iPod Touch.
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P.S. Who cares : the first beta is numbered as 7A238J . P.P.S. Dev Team in their blog report on the successful jailbreak of iPhone OS 3.0 for all four devices.