After 2.0.2, successful connection to my wi-fi at home is almost impossible.
I've reset the router, re-entered the wep key, bla bla, even re-restored the phone...
The iPhone DOES see and connect to my wi-fi, i see the wi-fi icon on, but when i try safari, app/itunes store... i get that "can't connect to the internet" message
Yup, I've the exact same problem, but only on my work router. Never had any problem before 2.0.2; but now I can see the network, connect to it, but can't get onto the internet. Tried the Wifi from my MBP and it works perfectly. Tried putting in manual rather than DHCP settings, no dice. Even tried setting up an Ad-Hoc network from my MBP, and same issue.
(Even weirder, before when I turned my phone on the network would show Edge, then quickly flick to Wifi. Now, it shows Wifi at first, and flicks to Edge!
The iPhone still works fine with the router at home.