Got the same one too, picked it up on Saturday when I went to visit my girlfriend, to my suprise there was a "New Apple Products Inside" poster outside Currys (in Portsmouth). I went inside and they had all the new iPods, this was even before the Apple Store (Bullring, Birmingham) did.
I'm very happy with it, I can actually carry it around without a case and not damage it by putting it in my pocket. It's quite like the old mini but higher capacity and smaller. It did crash and reboot when I plugged it into my MacBook but I am almost 100% certain that it was iTunes 7 rather than the iPod. The touch wheel seems to feel a lot better than the old nano for some reason, don't know if it is but it seems a lot more responsive.