Was pretty straightforward interview. However, was given an algorithm question rather than testing my iOS knowledge. The interviewer remained relatively uninterested throughout, and was possibly working on something else while interviewing me.

Recruiter contacted me through email. She asked about my previous experiences and told me about all the different projects happening at twitter. We set up a phone interview a week later. The coding question was a bit obscure and nervousness got the best of me, so I spent around 15-20 minutes just trying to understand what the problem was asking. It wasn't until the interview was almost over that I realized that it was a question straight from the facebook practice coding lab site. The interviewer was still very patient with me. I knew I wouldn't get the second interview, but we still spoke a bit afterwards and interviewer entertained with stories of twitter life and the projects that he was working on.