Please forgive me if this has already been discussed and I somehow missed it. I did a couple searches of the site, and didn't see anything, which I find surprising.
Anyway, I heard a rumor from David Feldman that Island Burger had been shut down due to a fire, so I went to check it out last night. Sure enough, a paper taped to the door announced that the venerable burger joint had a fire on January 16th, and that they'd be closed until further notice. I called their number this afternoon, and their voice greeting said that they hope to be open again in 6 weeks (I guess that means about a month from now, since I assume they meant 6 weeks from the 16th.)
For the meantime, though, don't put Island Burger on your to-do list.