I updated to iOS 4.0.1 from 4.0 and now I cannot get on wifi!!??? WTF guys? anyone else having this problem? I already had updated to 4.0 but when I updated to 4.0.1, I think wifi was working at first then all of a sudden it just dropped the wifi signal and now it won't find it, I have tried everything including typing the name manually - this happened last night, I tried restarting phone several times and I'm using the wifi right now on my MacBook Pro and my roommate has 3G iphone w/ver. 3 software and has no problem getting on wifi...this is a PROBLEM since I barely get 0-2 bars at home!!