Since late Xcode 4.3.x and continuing into 4.4+ the git service provided by Beanstalkapp.com no longer works with Xcode. Xcode won't list the remote repos, and therefore can't push to them. I just noticed that when trying to set up a new repo it now says "Authentication Required" which is much more helpful than the nothing but failure I was getting before. Git to beanstalk works perfectly fine from the command line, it's just remote based actions in Xcode that fail. Beanstalk uses an SSH key to auth the user, which is set and works fine per the command line success. It used to work in Xcode many versions ago.
Does anyone have any thoughts about how to fix this? I presume it's a compatibility issue with the git that is embedded in Xcode, but don't have any more thoughts than that.