Transport-level encryption with Tcpcrypt

I really should've read the linked pdf before commenting: It seems that already have user space implementations for *nix, BSD and OSX. The integration mechanism looks interesting too.

This is very exciting for me however! Hopefully in the not too distant future, this will make it into mainline and large chunks of internet traffic will start become opaque with almost no one noticing! =)

So I suppose what I was really asking for is more of a political (urgh) view of the situation - what sort of chances this has for general consumption, etc.