I had a total of three phone screens with Apple's software integration team. The first two phone screens were with the development manager of the team. The third phone interview was conducted by three senior engineers on the team and last about an hour. Their questions ranged from algorithm complexity to specific questions regarding Microsoft's .NET framework (the position required a lot of Windows knowledge). Overall it was a decent experience. The development manager who interviewed me in the first two interviews was very kind and made me feel excited about the position. The engineers in the third interview seemed rushed to get through their questions and even though I felt I did well, I wasn't offered a trip to Cupertino to meet the team for a face-to-face interview.