Looks pretty sweet to me, maybe make a version without the trapezoid surrounded the XHC?
Didn't upload it, because I didn't like the feel of it. Thought the non-round shape would make it jump-out among all the stereotypical coin-shaped logo's which just buries coins in a giant list.
Make one round and one without the trapezoid frame, and submit it. It's a community effort... build off of it. xD
I don't want any bounty, so throw it to the person who makes this look better.

Or another one.