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If i had the money i would probably do it but i dont have the money nor the technology but cell phone companies do. I think this is the future of cell phones as well. I would invent a system of phones that had a camera inside, similar to a web cam, so people could talk to each other and see each other in person while talking on speaker phone. This would be great in the car to have on the dash connected to the AC. It would be great for friends at the club, parties or other places to stay in touch and show their other friends whats going on, and it would be great for families to keep in touch and see each other.

[JC Doré] sent in this [english] interesting optics hack. The rubber grips are made from an old mouse pad, the springs for the clip were salvaged from zip drive floppy discs. A pair of old photo slide frames sandwich a diffraction grating slide. (Like this one) This simple mod allows the slide to be mounted to most cell phones, turning them into digital spectrometers.