My interview consisted of two phone interviews separated by a week and then a final contact a week later telling me that they were going with other candidates. The interviews focused primarily on programming and general development knowledge. The questions are listed below. The interviewers were very helpful in describing the problem if you didn't understand the specifics and would ask you to look at specific areas of your code and see if you could improve it. All-in-all it was a good if stressful experience. I am not certain exactly what qualities they are looking for, but I would suggest a month of brushing up on your algorithms and general CS knowledge before you apply unless you are some sort of coding god. Good luck!