I have had the F7 since Tuesday. I first tested the GPS on Thursday and noticed that it would not locate a GPS signal while inside the front passenger of a vehicle (SUV) unless I held it up to the window. Once I removed it from the window, the connection would drop. I subsequently tested it in another vehicle (car) and it also failed to connect while in the car. This was tested in locations 20 miles apart. Making matters worse, any little obstruction (while outside 5 feet from a 2 story building) also blocks the GPS connection. I tested it with several programs resulting in the same inadequacies. I never had any such problems with my previous Samsung Galaxy Prevail (or an iphone that has been used in both vehicles). Could others please test their GPS functionality. This could help determine if I have a defective unit (I'll ask for an exchange) or the GPS implementation in the F7 design is defective (I'll probably return it). I otherwise like the phone but if the GPS unit is this poor, it eliminates an important use and will ultimately hurt resell value. Thanks.