iOS apple approval for leader board Server

[IDMah]

Just wondering.

I'm planning on implementing a global leader board, webserver.
because I wanted to people to be able to see and challenge people
from their city, as well as have several users per device.

ie. Great_Geoff from Bergen, Norway just beat your score !
(user can enter any name) city and country data.

it also allows see top local scores for country, and city.
GameCentre is too limited in that respect.

But. If I upload user city, country to my server will apple reject my app?
is there some disclaimer or agreement I need to display before I run?

thanks
Ian