Description of problem: Online Accounts not support 2 step authentication for Google accounts Demonstration video: https://docs.google.com/file/d/0B0nwzlfiB4aQREtHZU9YZm5xc28/edit?usp=sharing
This has now been fixed in GNOME 3.10 that will make it into Fedora 20. *** This bug has been marked as a duplicate of bug 888822 ***