do u have to have nike shoes to use it?

Not necessarily, but it does help to have some Nike kicks, yeah.

no

Nah, you can just hold it or whatever. It is kinda stupid though in my opinion.

nope! l have the nike plus kit and Brooks shoes and l have this thing called a shoe pouch shoepouch.com it attaches to your laces and the nike chip goes inside. Its cheap too and comes in all different colors. l love it =] Hope this helps!