Building N-Tier business applications with technologies currently in a CTP version (facing WCF RIA Services, formerly .NET RIA Services) could be not the easiest job. One of our recent articles was on this topic (Building N-Tier business applications with .NET RIA Services – Part I) and Ian Burt joined the discussion expressing his thoughts on performance issues. That provoked us to have an interview with him to share his experience and position on that topic.