Lowrance launched the Touchscreen GPS – Endura Sierra, Safari and Outback: Sturdy, touchscreen handhelds that take outdoor maps of all kinds. This GPS could be used in all kinds of activities including hiking, hunting, off-roading, skiing, and of course boating. The top of the line Sierra ($550) has a barometric altimeter and a 3D compass, plus 4GB built-in memory for your maps or even music, pics and video. Read the rest of this entry »