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TwoNav Aventura GPS device lets you input your own maps
May 27, 2009
John Biggs
<img src="http://www.crunchgear.com/wp-content/uploads/2009/05/twonavaventura-thumb.jpg"><a HREF="http://gpstracklog.com/2009/05/twonav-aventura.html">The TwoNav Aventura</a> is a <a href="http://crun