Hmm...I have a feeling both the iPhone and iPhone Pro will be flash-based though. But I think you're right they will both be slider phones. I think the iPhone "slim" phone will basically be like a shorter, wider iPod nano with a slightly larger screen and a slide-out keyboard - so it will be about twice the thickness of a nano. The larger iPhone Pro will be like a narrower iPod, maybe with a portrait screen orientation instead of landscape, and will again have a slide-out keyboard. I expect that the iPhone will have something like 2 GB and the iPhone Pro something like 4 GB or even 8 GB. I would be pleasantly surprised if either of these models had any expandable storage, but I doubt it. I think they will initially launch without expandable storage, and then add it later in the second generation of iPhones...