Where is "FBSession.h" in the Facebook SDK downloaded from here: https://github.com/facebook/facebook-ios-sdk?
I've also followed the instructions from here http://developers.facebook.com/blog/post/213 and imported FBConnect/FBConnect.h but I can't create an instance of FBSession. Is this out of date now? The code they suggest you download can no longer be accessed from the link they give (namely http://svn.facebook.com/svnroot/platform/clients/packages/fbconnect-iphone.zip).
Thanks!