When it comes to following GPX tracks of trails, the Icon Justice Touchscreen Gloves, Touratech iBracket for the iPhone and MotionX GPS are three products that work in concert to solve your navigation needs off-road. With a few minor caveats that is.
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Links:
Icon Justice Touchscreen Gloves
Touratech iBracket: 3GS or 4 and 4S versions.
MotionX GPS

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Plug Play – Whoreship
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