I love this new ipod and think it's great, but, it soon eats up space when loading it with videos or the odd film, especially if you want to take advantage of the larger screen. You'll soon wish it had the capacity of the other ipods. I already have a 30 gig video ipod which I still love, so this one at 8 gig now seems small on storage. Other than that, I can't fault it.
If you require more storage, wait till they produce one with a much larger capacity, otherwise you may wish you had.
People who own two ipods and wish to use the old and new one in itunes, may have trouble trying to figure it out.
One simple solution is to create two libraries. To do this, open a new user account in windows, via control panel, log on as that new user, install itunes in the new windows account, and use and register your new ipod in the new itunes. That way you get two different libraries that don't clash or cancel each other out.