Just got an interview invite today, yahooooooo......snail mail. Can't remember when I sent in my app ( I should've written these things down), but I believe it was first week of October.
i just got an interview invite today by regular mail also! i just checked and my application was complete in the last week of october...so it took about a month. i guess they are just starting to come in slowly...they seem to be taking awhile. good luck!