[JKingGrim]

+1 for it does work. Probably as with everything YMMV. But if it doesn't work for you, I don't think it is enough to conclude it does nothing. Like it was said earlier at least it does nothing and at most it significantly improves fix time and accuracy.

I am in a dorm with decent cell reception but I have never been able to pick up any satellites in here. If I go to the window I can see a few, but I still can never get a fix in here. I have tried many times. I just flashed DCD 2.3 which has aGPS enabled by default. I have not used the GPS in a while, and I just flashed a new ROM, so there is no existing location data to help speed the fix. This was a cold fix. I started up GPStest and I was still unable to get any satellites. I walked over to the window and in five seconds I had a fix with 10 satellites (I am not exaggerating either). So I conclude that is does work. I also tried making a phone call while I had a fix. I lost several satellites, but the GPS continued to function and I did not loose the fix. When I hung up it almost instantly went back up to 10 satellites.