I gave an iPhone app presentation yesterday. It turned out well, but I wasn't pleased with my projector options. I went with the webcam aimed at the device solution. Glare sucked, my fingers got in the way, but it was generally viewable and allowed me to show iPhone features that are not supported on the simulator. Still it lacked the quality and polish I was looking for. When I do this presentation to a group of 100 or 500, or to the CEO or the founder of my company I'd prefer something slicker....