It seems a lucky guy over at gamezone was fortunate enough to get some hands on time with Varus and has been kind enough to write up summary of his abilities for summoner's everywhere. I've mixed his descriptions with screen shots from the video below for your viewing pleasure.
If you want to read more up on Matt Liebi's opinions of the champion, check out the in depth preview over at gamezone!
I'll also like to direct your attention to this phone recorded champion preview from a fellow summoner during his time at PAX. It features a some of Varus game play and the his shots of his abilities.