Well, since so many schools are still "sorting through their mail", as I've been told by 3 different institutions, I can't get too nervous yet. I think that's just a standard response, though.
Two of my applications are shown online as submitted but not completed. One glitch with dates on my GRE scores and another where they received one of my school's transcripts but not the other. I was told by that school that even though the two transcripts were attached to one another, that they might have been put into different piles in the sorting process, and I'll just have to be patient for my application to be listed as complete. It doesn't help that the particular application was submitted over a month ago, and they still have it listed as incomplete.
Oh, the panic. I guess I'll only start getting really nervous once I see other people submitting results from the schools I applied to and I haven't heard anything.