And now I have been to it also
Wasn't impressed to be honest, internet browsing was annoying and I am not sure I like the screen flip thingy, i found myself having to adjust the screen angle to get it to flip. I also can't see for the life of me why it's flash based, that thing is screaming for 100Gb+ storage.
Also with that much screen wasted on the home page, why would apple cripple the device by not allowing 3rd party development. One step too for me.
I also found the nano too small to use and the screen hard to see.
Having said all that the new iMac is very very nice
Cheers
Cris.