While movies typically do this in a b.s. fashion, it is possible to create an "enhanced" still image using multiple frames of a video source. It is called Super-resolution http://en.wikipedia.org/wiki/Super-resolution

I don't use it for much gaming, other than occasional time wasting (in flight, waiting for an appointment), but even then not so much. I use it mostly for browsing from the living room, email, and a media player while traveling. I also find it handy for when I want to check email or a webpage while gaming on the PC (especially games that don't alt-tab well)