RadioShack.com has dropped the price on the Motorola TN20 GPS receiver (model no. TN20) from $199.99 to $129.99, a savings of $70.  FREE ground shipping is included and sales tax applies for residents of most states.

The Motorola TN30 has also been reduced from $299.99 to $199.99 with FREE shipping.

The Motorola TN20 has a 3.5-inch color touchscreen display with preloaded maps of the continental United States.  Zoom and move maps with the touch of a finger, and view maps in both 2D and 3D modes.  Features include text-to-speach and more than one million points of interest.  The rechargeable battery provides up to 2.5 hours of continuous power.  Included is a one year warranty on parts and labor from Motorola.