Looks pretty sweet to me. I'll be keeping my 3G (I had my Rio 500 for four years! Plan to keep my iPod just as long!!), but I'm not sure what peoples complaints about "not enough new" are, especially when we don't even know what else is new BESIDES the new wheel (which is HUGE if ya ask me- regardless of whether it's already on the Minis).
The idea that the regular iPod will be slimmer is awesome, and probably will be larger HD sizes across the board (whic his always nice). At this point, until I see the beast in person, I'm not sure how I feel about the white w/ grey wheel. I wonder if the back is still metal though. Probably, eh? Pretty sweet though, might have to pick up this issue of (bleh) Newsweek.