I've got an iphone 3gs JB w/ blackrain running the latest software. I've concluded the wifi issue is not my home router. My brothers laptop picked up wifi, no problem. I might get full service in my computer room (next to the router). but i go the next room over, or into my bed room (directly above) and i'm back to 3g. I went up to a lounge with free wifi with my friends. One has a vanilla 3g, and another has an ipod touch. Both were connected, full bars and the picked up the 5 other networks around. My phone found nothing, period. It just started doing it this past week. I don't recall getting anything off cydia, aside from a new theme and the droid-style lock screen. I've done a network reset, rebooted the phone... i'm really trying to avoid a full restore. Anyone else having issues? i'm at a bit of a loss.