Any of you lot heard about this???

Only just read about it today and I think it looks amazing.

http://en.wikipedia.org/wiki/Nike%2B

my current training shoe has the slot for it, but i just got a mini and a video ipod.. so, eh, i don't use it. i think it'd be smarter to just get a NICE (50-$100) ped/hr monitor for your workouts. i've heard that they've quit working after just a lil while too (i used to work at academy sports).