I'm really hoping that facebook isn't able to enforce this. Was there really no implementation of a recent activity feed before facebook did it?

This has become such a paradigm for the web, that if they truly did 'invent' it, I guess they do deserve the patent, but wouldn't you say things like twitter are nothing more than an news feed?

RWW article on the same: http://www.readwriteweb.com/archives/facebook_granted_patent...