Okay, if it's square pixels (that's a pretty good assumption, but not certain), the 2732 x 2048 size puts it one pixel off from 4:3. (perfect 4:3 would be 2732 x 2049).

This is a very interesting development. I was almost certain that if they came out with an oversized iPad it was gonna be 16:9.

This is a really good thing.