Nextar offers its Q4-LT portable navigation device this holiday season that features a 4.3 inch touchscreen display, an integrated speaker/antenna, Text-to-speech support, 2D/3D NAVTEQ maps of the US and Canada, 1.6 million POIs, and MP3/JPEG file format support. What makes this navigation gadget more special is that it comes with a lifetime free traffic updates. The Nextar Q4-LT portable navigation gadget retails for $249.99 a pop.