1. A method for transferring content among computing systems and closed computing systems, comprising: establishing a communication session between a closed computing device and a first computing device; selecting by the first computing device at least one channel to use within said communication session; and sending from the first computing device unsigned content in said at least one channel, wherein said unsigned content includes a subset of a set of information sent at a first time, and wherein said unsigned content includes said set of information sent at a second time if a determination made based on said subset and resources of said closed system concludes that said set should be sent to said closed computing device.