The official panel/events schedule has been released on the PAX site: http://east.paxsite.com/schedule. I'll keep most of the information we've collected up here for references to the sites. However, the schedule listed is just for panels/events, not vendors and games, so feel free to keep adding more information about such things.
Thanks again to everyone who helped provide information. See you at home on April 11th.
Below is a list that I will try to keep updated. As Zerzhul mentioned, I'll try to keep this list to those that are officially confirmed.