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

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