Cocoa touch - GameKit GKPeerPickerController devices

I'm now testing GKPeerPickerController.

I have a simple app th开发者_如何学Cat just have a button and do GKPeerPickerController on a device.

However, all it does is "Looking for other iPhones or iPod touches..."

I do have another device nearby with bluetooth turned on BUT without the app installed.

Does that other device also need to have the app installed?

Thanks,

Tee

Yes. The other device needs to have the app installed and running for it to be visible to GameKit in your code.