The latest calls for interviews seem to have gone to guys that have already taken the phone interview, and the on line technical test.
I don't know if a new round of calls have started yet...and what the latest gouge on that is, who knows?
My guess however is that the process that they have established since we started this hiring cycle (in April or so of 2010) will largely remain the same...they seem to have had some good results in screening and selecting some great people.
Good luck.