That ain't Tatooine.
I saw the LIVE event from the Star Wars Celebration down in Anaheim this morning. They had JJ Abrams, Kathleen Kennedy (pres. of Lucasfilm), 3 of the new cast members, Anthony Daniels, Carrie Fisher, Peter Mayhew, and Mark Hamill.
JJ said the desert planet the Star Destroyer was crashed on was "Jackoo" (assuming that's the spelling).
They also said Harrison Ford really wanted to be there, but couldn't due his still recovering from the airplane crash.
Still looks great!!!