Sony announced a nice update to their line of GPS units. The Top of the line, billed as a luxury GPS, NV-U94T ($400 SRP) has an extra large screen at 4.8-inches (16:9 ratio), compared with the normal widescreen of 4.3-inches. The "T" means traffic which is fed through RDS-TMC system over the FM airwaves. The Bluetooth enabled unit will allow for handsfree calling on compatible phones.

The unit also comes with Position Plus which uses an accelerometer to help guide you while you are moving through tunnels. A nice thing when you live in a place like Boston where there are multiple tunnels under the city with exit ramps. The Sony GPS line will continue to use a gesture command to control the unit with flicks of the finger; quick stroke means "Go Home" which can be a nice shortcut.

The NV-U84 ($350 SRP) is a more affordable extra large screen at 4.8-inches, while offering a lot of the features of the higher level NV-U94T, without the Bluetooth or traffic. The NV-U74T ($300 SRP) has a normal widescreen at 4.3-inches but includes such features as Bluetooth, traffic, and the gesture command.

The NV-U44 ($250 SRP) is a standard screen (3.5-inch) unit that offers text to speech, gesture command and a photo viewer. Pre-orders are being taken at Sony Style, and a quick look there has a ship date of September 10th.