my sincere apologies for the lead-in comment; I had planned to write more immediately after, but just couldn't get away from it; Got one for the wife as well and she's been mesmerized...

Here some additional:
This thing is just freakin' awesome; So addictive; The wife is totally entranced and she is the furthest thing from techy you can get.

Showed it to some neighbors and their kids last night (they 'hate' techy stuff) - they used it off the bat and were pretty much just drooling... I've never experienced quite this level of integration ease-of-use; Interestingly, I brought it home, activated/set-up in a few minutes (via iTunes); Sync with contacts, e-mail, calendar, music, movies , and TV shows - took about 15 minutes to initially copy/sync it all; then lit out to the neighbors as we were late; Without ever even using it - I was able to show all of the above features and hand it over for immediate use.

The multi-touch screen interface makes it so intuitive - we were watching North By Northwest - call came in - paused, answered the cal, hung up, back to the movie where I left off;

Google maps is amazing - you zoom by using the 2 finger stretch motion...

From Browsing music albums, watching movies/tv shows, browsing FULL internet (and google maps), looking at some of our photos, and making phones calls - all just easy and slick;

It automatically picks up our home WIFI and connects to the internet that way;
Setup was via iTunes, only took a few minutes (including selecting the AT&T plan and activating phone);

I know some will find nit-picks and no doubt improvements will be made, but this definitely raises the field several pegs; It acts more like a computer in your hand with an elegant interface. The touch control and integration is so addictive.

Juno - I have an ATV and an Airport Extreme hub; I gave my express to the kids; I was wondering the same thing - I'll check that out and see if I can.. report back on that one...

ken