Connection muxing is rudimentary. Long running connections will probably cause problems. there's no GC on dead connections yet. We need:

• multiconn to land: netfixes...multiconn
• swarm GC on dead connections
• everything to handle connections dying / reopening well.

the net layer is a mess of goroutines and channels. We should probably use a library, like muxado or libchan. @inconshreveable and I were discussing so in irc.