As David Recordon mentioned on the Facebook Developer Blog, the Facebook Platform team is working to move Facebook Connect over to OAuth over the next year. As a part of that effort, we have been working with Google, Microsoft, Yahoo!, and a number of other engineers on the OAuth WRAP standard, which aims to be much simpler to implement than the existing OAuth standard.
via bret.appspot.com
This looks like a really simple thing to implement when compared to the original OAuth standard. Instead of needing signatures this protocol uses https. here is an his example code: http://github.com/finiteloop/friendfeed-wrap-example/blob/master/friendfeedwrap.py
