RoadMax and TeleType both look to be trying to lower the barrier of entry to in-car GPS navigation, each company recently announcing units that'll retail for less than $400 US. RoadMax's VMax 361 is the cheaper of the two, running just $349 and offering up a pretty no-frills approach, with a 3.5-inch touch screen, voice prompt navigation, 2D or 3D viewing options, and an SD card pre-loaded with maps of the US and Canada, and should be available in August or September. TeleType's Windows CE-based WorldNav 3100 GPS comes in a little higher at $399, also packing a 3.5-inch screen but offering a bit more in the way of extras, including support for most audio and video formats you could ask for (including DivX and Xvid) along with 2D or 3D navigation and pre-loaded maps of the US and Puerto Rico. A premium version is available for $459 that adds a choice of male or female voice guidance (the basic version is female only) and more than 12 million pre-loaded POIs as opposed to just 3 million on the standard model.
Read - RoadMax VMax 361
Read - TeleType WorldNav 3100