The process took 1 day. I interviewed at Apple (Cupertino, CA) in Jan 2010
Interview
The interview started out with behavioral questions such as tell me about yourself, why do want to work at apple and then continued into technical questions first about C, such as what is a variable, a function, simple stuff but it needed to be explained very throughly. The interviewer then asked me about C++, what is an object, a class, encapsulation. The interview then asked me if I had heard any news about Apple or if they had been in the news lately since the day I interviewed, Apple released the iPad. I was then asked to send some writing samples and I am currently waiting to hear back. The interview was not hard, but you needed to be able to explain the technical questions and how a programmer would use them.