cranberrygame I am asking in here as it seems to have gone unnoticed on the google community. Two things.
Your PhonegapGame plugin only seems to allow the option to login to Google Game once per game launch. Allow me to explain...
I prompt a login using your plugin when the game is launched, but if the user chooses not to login initially I also have a button on my menu screen that should prompt it. However, this option fails instantly when clicked. I have tried different variations of this setup and it appears that every time, if the first login attempt fails, until the game is reset, it will continue to fail thereafter.
PhonegapGame-User image url
It seems your plugin isn't retrieving the users profile image URL correctly. I can set sprite by URL using Scirra's official Google Game plugin, so it's not my event setup causing the issue, but it doesn't work using your plugin. Do you know if this is a bug? I know other people have had a similar issue.