I know several people now have Mario Kart Wii... so what's your friend number? Mine is 0559-7254-0715. Diana's number is 0645-6249-1291, though she hasn't played it yet. :)
Initial impression... gosh it's a lot of fun, if a little strange to get used to. I haven't tried to play with auto-slide on, but I can't imagine it would be helpful. So I'm sticking to it old school, manual.