It seems that sometime after jb-ing, my iphone4 has lost the ability to determine it's location while connected to an AT&T microcell. (in any app) I'm about 40mi south of downtown Los Angeles, but it thinks I'm smack dab in downtown. Off the microcell, it works fine, and a 3GS on stock ios4 works fine on the same microcell. Anyone else see this?
Yes, seems to have happened after... for a while, I could get another app to "Find" me, which made it work in Maps, but no longer. I'm fully up to date.
Off topic: Are you in the OC lol? Im 40 mins south of LA. On topic: my microcell works fine still. No problems at all with my JB.