Haha, it's my new obsession, too.
I have a feeling they just entered the applicants into the system yesterday. Especially if your app was complete months ago and it just says it was complete yesterday. I've been checking this site fairly frequently since submitting my app and until yesterday, it said I had no applications pending.
I still never got that email, though, so maybe that does mean something good for you - I hope so. Someone in another thread mentioned receiving a similar message, but maybe it's just for the lucky ones who've already been admitted.