So you've been wanting to come to Expand this March 16-17 in San Francisco, but you've been dragging your feet on actually buying those tickets (we know, life is busy). Good thing we have a chance for you to win a pair of free tickets right now! All you have to do is send us a tweet to @EngadgetExpand, telling us which speaker you're most excited to see at the show. Check out the full list of announcements we've made so far and let us know your favorite! You'll need to be 18 years of age and a U.S. resident to be eligible to enter (and be sure to check out the
