I know this is slightly off topic, but my Wifi 16Gb randomly will lose its WiFi connection, then seconds later is comes back. My 3G has not lost connection, but the signal fluctuates.
Are u using D-link? I have the same issue... Don't know if this is on my router now or my iPadwifi doesn't drop often, but annoying nonetheless..
Mine does seem to fluctuate quite a bit, even when the router is only a room away. I'm sure it'll be fixed in a software update though.
My wifi bar fluctuates (it's wrong) but the connection is fine and I'm sure it could be fixed with a software update. If anything Just go to the apple store and swap it.