3M's launch of a 4mm projector for use in small devices has been met with bizarre luddite criticism rather than the enthusiasm that such a breakthrough would normally warrant. Detractors are claiming that this is the first step on the road to visual pollution and are eyes will never be safe again.
Which all seems a bit previous if you ask me. Cameras in phones haven't reached an acceptable quality yet, what possible reason is there to expect this to work any better. Certainly it will be a long time before we have a camera-projector whose performance can approach even the feeblest of modern projectors. I think, for the next few years anyway, the technology will be useful only when combined with a laser virtual keyboard to create a very personal PDA/Smartphone with big input and display modes.
Which is in itself an appetising prospect.
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