Running a PowerPoint Slideshow From Your Windows Mobile Phone

During the recent .NET University, I had my first iPhone envy. Leon Gersing was giving a presentation on the basics of OOP (which was excellent), and I noticed that he was carrying around his iPhone while he talked. On closer inspection, he was actually using his iPhone as his presentation clicker. He was able to move forward and backward in his presentation, and his phone was actually displaying his speaker notes in his hand! How cool is that? Frustrated, I was convinced that there must be a way to do this on a Windows Mobile phone. THERE IS.