Federated Login Improvements

This is related to my application context post.

The changes Google made recently make having both a Google and Google Apps login irrelevant. I tested out signing in via my Google Apps account using the Google login and it works just fine. Support can remove the Google Apps login option.
Using the Facebook option, the logo looks rather unprofessional. Please fix that.
After federated login for new users, Zoho asks for a user name. Note that the instructions mention the zoho email address which should be removed to keep things within the application context.