Thank you for your submission, here is some feedback...
1.) We are not very fond of a round icon, we are more partial to a square icon with rounded corners like the iPhone icons. These tend to look better at smaller sizes
2.) The E inside the logo isn't working for us, at a small size it would barely be visible.
3.) The word mark font is a little too thin, we would like something more bold lik the facebook word mark
Thank you!