The free app contains pretty much everything you'd want to know about the museum, from floor plans to schedules to directories of all of the art in the museum. It also has audio tours built right in, so you don't need to rent those little speakers when you're there.
But my favorite part is that it's essentially a gigantic database of art, featuring photos and info on pretty much everything on display and a lot of stuff that isn't on display. So the app helps you out when you're at the museum and when you're not. And it's free! Why wouldn't you get it? [iTunes Link via MoMA via Kottke]