Today at the IM, Contacts and Social hackfest we talked about supporting chat accounts in GNOME Online Accounts.
I did some work exposing accounts from GNOME Online Accounts to Telepathy (Bug #652543). It still needs a little bit of work, but from Empathy it looks like this ((ignore the other Google Talk entry, that’s my non-GOA chat account)):
With this work Empathy will prompt for the account password when there is a GOA account. Guillaume is currently working on extending Empathy’s authentication handler to authenticate automatically using the credentials from GOA (#652546).
Bastien is extending GOA to include a Chat account type so that you can control whether to enable chat from Online Accounts (#652574).