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 videorecording, but makes no mention of potential background apps and plays down any surprise tablet or "iPhone mini" cameos. He goes on to add release date would be sometime in July in 16GB and 32GB varieties. We can't say we're willing to bet against him, but that doesn't mean we'll take his word as gospel. We can safely say, however, that we're anxiously waiting to see what kind of shenanigans Schiller has in store for next month.