Are you going? I am!
I attended last years Summit and let me tell you if you have never been I would highly recommend it. At OMS is where all the Cool Online Marketing Peeps hang out and by peeps I just don't mean all your Twitter friends but most likely you will find one or five of your tweeps there.
If you're interested in going, here is a coupon code for a 15% discount: "VIPSPEAKER15"
Catch ya June 6th-8th!