I applied through a recruiter. The process took 1+ week. I interviewed at Arm (Olympia, WA) in May 2012
Interview
Expect to perform your knowledge of web development on the spot. You meet with a minimum of three people, one of whom will test your knowledge. You will have to write HTML on a white board and predict code on an existing website. The process is otherwise standard, list your best and worst qualities, etc.
Interview questions [1]
Question 1
The quizzing of archaic coding methods was the most difficult.