Hi there

I've followed the whole Bitcoin concept with its torrent type infrastructure. In Russia they have a programme thats looks just like Facebook, but it isn't. This is obvioulsy due to the fear of privacy and this got me thinking.

Is there a way where an opensource version of facebook could get developed with encryption settings for your friends only, or settings modified to the level you want your account open and done with the internet as the infrastructure as opposed to a central datacentre.

If this could be done then it would be very popular if poeple know that heavy encrytpion would keep their info safe and friends can share personal info without fear of who is reading it. Infact this would leave facebook dead in its tracks.

Any ideas programmers?