Microsoft has made the difficult decision not to hold Tech·Ed 2007 in New Orleans. With this event drawing a large number of attendees from around the world and with the airlines only servicing the city with about half of their pre-Katrina flights, the logistics of moving that large a group into and out of the city is challenging and would likely result in travel and logistical challenges for attendees.
Instead, Tech·Ed 2007 will be held on June 4-8, 2007 in Orlando at the Orange County Convention Center (OCCC).
Here is the official site.