After a unpleasant experience with an us bay seller I bought mine three weeks ago on German eBay. It's almost in non stop use (work and private) and for me it's not magical - it's extremely enjoyable and useful at the same time
Use some apps and downloaded many more... (is there something like an iPad app addiction ??) feel free to ask for some more in depth comments
My all time favorite is air video (lets me stream all my videos to iPhone an iPad over wifi and 3G)
For the kids:
Harbour master HD
Colour draw (loved by my three year old)
5 in 1 kids pack
Magic piano (my ten year old plays Tschaikowsky

)
Pinball HD
Bebbled
Hangman
I hear ewe (animal sounds)
plus lots of free stuff
For fun:
Eye tv (live tv and digital VCR if you have an elgato stick)
Transfer (transfers photos from iPhone or iMac over wifi)
Pocket pond
Bowls HD (err... My significant other is into meditation....)
Bigger words and banner HD
Scrabble
Speedtest and speediest HD
Die Welt (German newspaper) time magazine, ny times early edition
Wikipanion
App advice
Productivity:
Todo (syncs with my iCal)
Bento and pages (not really good)
Good reader
Camera for iPad (uses the iPhone camera remotely)
Drawing pad (use it like a notepad for easy diagrams by hand)
Sundry notes
Corkulous (like a cork board)
I tried a remote client jump desktop and didn't find it useful for me.