It clicks
All it really does is click - fairly worthless if you have a complex presentation that has actual links that need to be hovered or clicked. Might as well use itouch-server app to use your phone as a mouse. It is free and It clicks just the same but you have full mouse control. Who needs a preview of the slide on the tiny phone during the presentation? That would be bad form IMHO.
Winstonion about
i-Clickr Remote for PowerPoint Lite