Hardly used (I think I used it two or three times) HAiCOM HI-204S GPS Receiver for the Treo 600. Still in the original box and includes the Arkon Universal PDA Vent Mount w/ 360 Swivel Vent Mount Pedestal. The unit would cost $100 new. I am asking $75 which includes shipping. For more information, check out this link at buygpsnow.com: http://www.buygpsnow.com/item.aspx?itemid=271

If interested, either reply to this post or PM me.