I wasn't really referring to Joost's viability as a P2P system -- it already is. I was more along the lines of addressing the viability of building a compellin

I wasn't really referring to Joost's viability as a P2P system -- it already is. I was more along the lines of addressing the viability of building a compelling user-content community -- it's a lot harder than it may sound, especially when you think about how would Joost's primary features co-exist with multitudes of relatively "shallow" content.