Shared connection for TURN TCP

I presented this morning in the BEHAVE session my proposal to multiplex the data between a TURN client and a TURN server for TCP allocation:

http://ietf.implementers.org/IETF20090325.pdf

The proposal was rejected but none of the arguments presented convinced me that there will be no problems in the future with the multiple connections proposal. But without some hard numbers I do not think that this can be reversed and I do not feel like implementing TURN TCP right now, so until then the proposal goes to the Pending Told Ya stack.