I'd really like to know as well.
I recently lost my iPod Video coming back from New York, my holiday insurance won't cover it and i didn't have 'away from home' home insurance.
I can't live without my iPod it's been three days and i'm already having withdrawl symptoms.
Knowing my luck (exactly like Lindsay Lohan in Just My Luck) I'll buy a new one a week or so later a new one will be released.
If you're wondering about spending $250, just do it. First of all, that's a good deal for what you get in an iPod. Second of all, there almost certainly will not be another iPod out before Christmas with all the updates the line just received, and third (of all?), whenever there is an update, I think there's a pretty decent chance it will augment the current full-size iPod, not replace it, at least for awhile. That means a full-screen touch-sensitive iPod will be likely be in the $400+ range, much like the color iPod photo was positioned upmarket of the standard iPod when it was released, and then eventually became the standard model.
because this Holiday season, Apple will be focused on selling the current iPod, and then shortly after the Holiday Season like February, a new model comes out.
The 5.5g version to me is just incremental...nothing stands out that makes me want to upgrade from 5G.