Cool tech use in Army Ten Miler

Amidst all the complaints about the SNAFUd Army Ten Miler on the site's bulletin board, I found one set of posts that turned me on to a very cool use of the personal GPS units that some runners use to measure how far they've run. Check out this Google map of the course we ended up running, complete with mile markers and an optional measurement of calories burned! Hm, might have to get me one of them there things.