Author Exposed is a simple plugin that's does the same as the_author() tag. It displays the post author's name, only this time name is linked to hidden layer (div).
You click on author, hidden layer(div) pop's up with author details (taken from profile page: first name, last name, email, description ...) plus gravatar photo if author have one, if not default gravatar photo would be used.
Changes to v.1.1
* Fixed wp auto installation.
* Changed dir name.
* Used hook to replace wp function - author posts link.
* Fixed z-index issue
Read more : Author Exposed Plugin
Demo : Author Exposed Demo