"Great idea - however totally inaccurate with non-nike shoes"2.0 starson by jl1802
Pros: Superb idea, easy to use, great website, great fun
Cons: totally inaccurate with my new balance running shoes
Summary: Very easy to use, great fun during your runs, put it in my new balance shoes, 10 runs completed so far, however measurements are 50% off (tells you one mile completed after running half a mile).
ps. nike sportsband makes a shuffle out of a nano.