Hey, i've noticed nothing directly related to cupcake to froyo having major problems with wifi. Before my upgrade to 2.2, which was done by a samsung service centre (because i have had bad experiences they kindly did it for me), I had a perfectly strong wifi signal and I could even get access from a couple hundred meters away at a local shop. Now I am 2.2 - utterly pathetic weak signal. Phoned Samsung to get them to downgrade or tell me how; they said it wasn't possible. Also they could not give me an answer as to when it would be updated to fix this problem. Im at a complete loss, tried everything with my router (which, frankly, is not the problem). Even standing next to the damn thing is 2 bars!!! Im happy to go back to 2.1, I have had nothing but problems with 2.2 - the adobe flash usage is beyond terrible, and that was the only impulse. Any help, I would very much appreciate.