I'll just do this the LTD way. 
Updated : Yes. Europe / England
Games : Pilotwings (Played for about 10 hours with WiFi on most of the time)
used built in software for over 4hrs (with WiFi on)
Encryption used for WiFi: WEP
Also used the camera extensively , the music software etc,basically pretty much everything thats built into this baby!
No errors as yet.
Is this a North American only thing. Any japanese reports of this (though I'm sure they got bigger things to worry about at the moment
) or european?