Alwaysjammin, you can tell how many spots were unfilled by the numbers next to the name of the school. On the first list, it shows the quota and then the number filled. On the second list posted, it shows quota, filled, unfilled.
I'm guessing that that is the initial list (from before the actual start of the scramble), but I'm not sure.
Futuredo32, the list can occassionally be misleading. For example, UTSW shows a quota of 2 spots both of which went unfilled. I am pretty sure that that is the research track. They have 12 total PGY1 spots. My guess is that they just filled all 12 through their regular track.
Also, I think UC Davis, which did not fill, is an excellent program, especially from a teaching standpoint. I suspect that many of their interviewees opt for other California programs, with location oftentimes being a significant factor.
P