A couple of things:
Chromeus, spell it iMac and be done with it. 5-plus years are riding on the whole lower-case "i" thing. You don't get to override that. Doing that goes a long way toward making you come across as someone who at least "gets it", and isn't some P.C. user trying to make Mac hardware designs. The only people who say "IMAC" or "Imac" are clueless writers, PC users and casual observers who haven't grasped the whole "i" thing yet. I'm trying to help you! Won't you please let me.
Second, we have to consider that everytime we zig, Apple zags. With a couple of exceptions, everytime we think a new Apple product will be based on a recently released product from the same family or whatever, they often seem to surprise us with something totally out of left field. That's why I think the idea of enlarging their iPod/dock approach for use with a new iMac just doesn't seem like something they'd do. When they come out with an all new product, it never seems to resemble something else in their line-up.
iPod > iPod mini
G4 tower > G5 tower
G3 iMac > G4 iMac
Old Cinema Displays > sew Cinema Displays
G3 PowerBook > G4 PowerBook
Clamshell colored iBook > white Chiclet iBook
Materials may be borrowed, certainly. The glossy white of the consumer stuff and the sleek matte aluminum of the G5 and PowerBooks (and Cinema Displays). But I can't think of an instance where one crosses over and they simply copy an existing design and merely change the scale to make a "new" product.
Jobs and Ive seem to be above that (thankfully) and I think many of us would yell "uninspired cop out!" if they did take that approach.
I know I would!
That's why I think the iMac G5 will look nothing like a large iPod in a dock, or a previous-generation Studio Display with the guts mounted parallel to the back (unless Jobs wanted to retract everything he said two years ago), or a current-generation Cinema Display with the "guts" crammed in to the base somehow. I don't think you can take an iBook body and stick a pole on it and slap a display on it either.
I'm not saying my design is anywhere close (but I'd bet on it more than the others), but I will say it's not based on anything Apple currently produces and, in some ways, makes it a more "hmmm, well if history is any indication..." thing to consider. It would surprise me LESS if a new iMac G5 looked somewhat more like mine than an enlarged iPod/dock thing. That just simply doesn't seem to be how Apple does it, and I can't imagine them (Jobs and Ive, in particular) taking such a route. Besides, I don't know how I feel about tablet stuff in general. I don't think that'll come to be. But you never know...
Remember, right before the dual-USB iBooks came out years ago? We were all trying to imagine what new colors the new iBooks would be. And I drew mock-ups of even curvier designs. Then when they were unveiled, it was a damn square Chiclet! I couldn't believe it!
We zig, they zag. Same with the iMac G4. NO ONE predicted the "sunflower" approach. Every mockup I saw - including my own - was some variation of "strap an iBook body to the back of a 15" Studio Display". What actually came to be was breathtaking.
I'd be willing to bet a hefty sum that it'll look like NOTHING from the current Apple inventory, but yet will fit in beautifully. Their track record on this is second-to-none, so I have all the reason in the world to be optimistic.