Sony has added a second device to the NAV-U line of GPS devices by introducing the NV-U71T. This GPS device comes with a 3.5″ antiglare screen that is attached to your windshield via a suction cup. The NV-U71T features a new user interface as well as the intuitive “Take Me Home” feature that is launched by simply drawing an inverted “V” on the screen. The device costs $500 and requires a $4.95 monthly subscription. The problem with suction cups are they lose some suction power over time, which could potentially lead to the entire GPS device falling headlong to the floor of the vehicle. Has anyone found a way to ensure the suction cup sticks on for all eternity? Since this is a Sony product, will it blow up in the car without any warning?