Amazon Software Engineer interview questions

Responded to a posted job with my reume and cover letter. Had a scheduled phone interview which was casual discussion of my background and accomplishments. Was flown out for face to face interview where I met with team members 1 at a time for aprox 1 hour technical interviews where I was given design problems and technical Java questions like demonstrate the use of threads and queues. Finally interviewed with manager and was challenged with open ended qestions to answer with as much as I could provide for ideas and direction.

Amazon came to my university and interviewed many of us back to back in a reserved room. Had to sign NDA before interview. Was asked to introduce self, and went straight into algorithm questions given a piece of note paper to explain. Interview kept looking at phone, but explained he was checking the time.