Apparently, no-one had thought to let Google know that this is a needed feature (despite Googlers posting once in a blue-moon about this issue over on the discussion groups).
I've starred it fine with my google apps account. You do have to create a 'code' account first though IIRC. Similar to how you have to create a 'Blogger' account despite them using a Google Account.
We should star the following issue: http://code.google.com/p/google-plus-platform/issues/detail?...
Apparently, no-one had thought to let Google know that this is a needed feature (despite Googlers posting once in a blue-moon about this issue over on the discussion groups).