I have a little different take. So, let's assume that you can combine 5+ encryptions / encryption points and hide the contents of you communication on someone else's network. IT IS STILL SOMEONE ELSE'S NETWORK. What happens when the network owner becomes China (game already over), UK (now blocking porn, next political speech, etc. >> game over), USSR, USSA, etc. and decides that your packets look like something we don't transfer. Or what about the old proposal to require a license to use the Internet? -- see http://www.techdirt.com/articles/20100204/1925188060.shtml and http://business.time.com/2010/01/30/drivers-licenses-for-the... and a million other links.
Solutions built on top of some existing (OWNED) platform are inherently fragile until there's a private (P2P-like HAM radio to smoke signal) transfer pipe.