JComments [button]?

JComments - most popular comment system for Joomla. I thinks this is be cool, if you can create login button with JComments form! Something like on this picture.

recently released new version 3.0.4 (last update on Jun 23, 2014) and this component have some improve, like youtube/vimeo/instagram/facebook media buttons. and no-flash only iframe content (good for mobile users). i'm just send message to JComments author, and he add/improve this things.