This is actually really neat. Another step along the 'phone is the <i>only</i> device you need' road.<p>It would be great for quickly sharing stuff like a youtube video. Kids could use it to watch a movie in their room, or at a friend's, or grandma's. Similarly, it could be great for the travelling. I can see some really great augmented reality uses for this, provided there is enough developer interest.<p>Don't scoff at it because it doesn't match up to your 'real' projector-- it has some cool uses. The specs may not be so great yet (640x360 resolution, 15 Lumens), but it's very impressive that they got this into just 12.5mm thick phone, and specs (particularly resolution) will improve in future products.