Not everyone who comes to TechEd is super-technical.  Rob is a project manager for IT projects and was at TechEd to learn more about ALM and what's new and coming soon for Microsoft's application platform.  He decided to take the MTA exam for Operating System fundamentals to begin using certification to establish his technical credibility even though he's not a developer.  Are you a project manager who needs some credibility with your developers?  Maybe MTA is for you too.