Our brand new iPod Touch 16GB version 2 arrived today. First problem: can’t connect to wifi router (Wanadoo/Orange). Our wireless password was not accepted. After entering the wifi password multiple times we discovered that the wireless password on the iPod is case sensitive (capital letters vs. small letters makes a difference).
Entering the WEP/WPA wireless key into the iPod touch in all upper case letters solved the wireless password problem. And I’ve heard to not use the Caps Lock key to do this, rather, just use the Shift key (requires it to be pressed each time while tapping a letter or number). This doesn’t make logical sense to me (Shift key vs.Caps Lock for upper case letters), so feel free to give Caps Lock a try first.