Quite often we have wondered about the usefulness of some of the "Powerpoint" readers and similar software, which are available for cellphones & PDA's. Sure, you can carry & view the presentations on your phone about only a few PDA's and phones have a VGA or a TV output.
That's where, Project-a-Phone comes in. It attaches to your phone, and projects the image, video or any thing else on the phone to an overhead projector or PC. Costs about $199, and once you hook it up, looks like the phone is at the dentist. But, worth a look.