Sat nav on your bike?
I've done a lot of riding with a GPS, Pocket PC phone and Memory Map - it all works really well and it's great how you can upload a track and follow it. but what about a 'proper' satnav for your bike - one that you can lob your route into, and then it shouts at you to turn left in 100m? anyone seen one? or anyone tried just using their car satnav on a ride and programmed in some complicated route with lots of vias?