Running the speed test app side-by-side with my wife's iPhone 4 and she's getting an avg of 1.5Mbps and my iPhone 4 is getting 700k. I've run this 4 times now with the same results each time. She's got an Apple bumper, I've got an iFrogz case. She's got 4 bars. I've got 2 bars. They're literally sitting next to each other on a table. I took my case off, no change. Hers is also one minute faster than mine (both clocks set to auto) Any insight?