I think that's a great mockup (DmitriF's posted image) of what a flash-based 5.5G succesor could look like. I like the new iMac look to it, it would be a fine rev. of the 5.5G IMO. Hopefully it also has a hard glass screen (and probably a black Apple logo on the back as well.)
Now to the iPod Touch...
Whatever you want to say about Don Bagles, he's been entertaining to have on this thread. We'll all know in 2 days anyways. Hopefully some more info will dribble out soon on the rumor sites. OTOH, you know you'd be disappointed if you watched the media event already knowing 100% what was going to be introduced, right down to what the '1 more thing' is.