'640- by 360-pixel native display resolution', eewww. There are lots of little pico projectors around at lower prices and better resolutions. Only thing this seems to have going for it is the iPhone 4 form factor thing. Seems a drawback to me. the free standing ones, though they require a little more stuff, cable, power supply maybe, are so much more flexible, allowing use with the iPhone, iPad, android phone, tablet or laptop of whatever OS that supports video out.
Sometimes you are the anteater, sometimes you are the ant.