Same here in Mississippi. I had it before update an only after 3 hard resets I got it back then I downloaded a app an lost it again luckily I only download one at a time now to see what happends to phone
I can't get 4G either but I just updated to MR2. Never had a problem and still had free hotspot so I never updated. When GB came out before it was pulled I updated it thinking it was GB. Now my phone reboots 2-3 times a day and I can't get 4G.
My phone is far more prone to dropping to 3G as well with GB. Before GB I always had solid 4G in Philly. I'm rooted and tried multiple ROMs and Radios and nothing gives me the consistent 4G I had with Froyo.