3 Phone interviews, first 2 were technical interviews with various members of the team, third interview ended up being more HR oriented with minimal technical questions. The offer came in after the third interview.
Doing the interviews on the phone was a little akward, especially when I had to write a C++ implementation of breadth first search and read my solution line by line. There was also an instance where my interviewer missed my second interview and we had to reschedule. All in all though, these things happen, and I felt the interviews were effective at testing my knowledge and they were pretty prompt about getting back to me.