GPS for mtn biking??

Garmin has a bike GPS in the works that will integrate with MotionBased (which Garmin just bought) which will allow you to download tracks for various trails that folks have uploaded, and the unit will show you your position/time relative to the previous rider's position/time. The units is called the Edge. Supposed to come out in January. It's on garmin's site if you look.

I've been using a Garmin legend for a couple of years now with good results, its a breadcrumb mapper (no loadable maps, just leaves a trail where you've been) only negatives are batterie life (maybe 6or 7 hrs) and its fairly large on your handlebars, I've been waiting for their new one, release date is Jan.06

i've got a garmin geko 2...you can download routes, trkpts and waypoints to it...but i just use it to collect tracks from rides...it's powered by two AAA batteries...although the thing is smaller than some bars of soap, i recommend getting a unit that is powered by AA batteries at a minimum...the AAA's NIMH batteries do not have long life, probably 4.5 hr realistically...i have done extensive testing with my unit...also, since my unit is small, in tree canopy areas the unit falls out of 3D often because the antenna in the unit is also small..

2 pennies for ya