What is the practical data size limit for GKSession sendData:toPeers:withDataMode:error:?

At what point should I break up an NSData obje开发者_运维技巧ct into multiple objects, or use a third party data source to send data between GKSession bluetooth peers?

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Found it in the GameCenter overview docs. (Not sure why they don't put this right in the method docs, but oh well).

The recommendation is to keep it < 1000 bytes, with a limit of 86K.