Aloha Cocoa

I was just doing some research on this and figured I would post it here for other devs that might be looking for similar answers (and because Stack Overflow limits new members to one link per reply). The best resources I have found are:

http://www.capturetheconversation.com/technology/iphone-facebook-oauth2-graph-api
http://www.capturetheconversation.com/technology/iphone-facebook-oauth-2-0-and-the-graph-api-a-tutorial-part-2
http://benbiddington.wordpress.com/2010/04/23/facebook-graph-api-getting-access-tokens/
http://developers.facebook.com/docs/authentication/desktop
http://matrixpointer.com/karl/posts/mpoauth-on-the-iphone-mpoauthmobile 

Interesting that Facebook advocates embedding a browser when best practices seem to dictate OAuth authentication happen in an external browser for security purposes.

Twitter seems to be moving a little faster, with it’s support of xAuth (Assuming you are building a desktop or mobile app).

http://www.reynoldsftw.com/2010/03/using-xauth-an-alternate-oauth-from-twitter/

Misc Resources: 
http://github.com/bengottlieb/Twitter-OAuth-iPhone 
http://github.com/aral/XAuthTwitterEngine 
http://github.com/yourhead/xAuth_ObjC_Test_App 
http://github.com/lukhnos/objectiveflickr
http://immike.net/blog/2008/09/08/oauth-on-the-iphone/ http://fireeagle.yahoo.net/developer/documentation/oauth_best_practice