John Gruber over at Daring Fireball has a pretty good track record when it comes to Apple rumors -- remember his spot-on predictions for the unibody MacBook Pro? -- so when he's got a thing or two to say about all the next-gen iPhone chatter, we listen. While not making any promises, he does say he'd wager quite a bit on a new model coming to WWDC, with about twice the CPU horsepower (and possibly twice the RAM, too) as the current model. He also adds some credence to all that talk of
