grimwire.com/local is trying to solve that by turning workers into web servers and letting them power user plugin systems. I'm in the process of redesigning the docs and packaging it with webrtc tools, so it's getting some work atm, but here are some videos of things I've tried while working on it [1][2][3].

1 http://www.youtube.com/watch?v=2nrZiJph6SU&sns=em

2 http://www.youtube.com/watch?v=vAMTomxQV80&sns=em

3 http://www.youtube.com/watch?v=erVREtQoMCc&sns=em