Had two phone interviews about 2 weeks apart. There were three people, and the speaker-phone connection was a bit tough to deal with. Basically they had me outline my job history and some school information. Second interview was more of the same with some new people and some from before. The only technical questions were about some of the software experience I had with MATLAB ( B.S. mechanical engineering).
After the second interview, not much happened until I probed with an email about 2 weeks later and they said things were moving slowly, but I was still a candidate. Got a call the next week stating that they "would be making me and offer" hopefully by the next week. Got the call and finally the offer in about 4 weeks after the second interview.
A little slow, but it worked out well with my graduation timing. The interviewers were very friendly and seemed interested in the process.