Engagdet is featuring an article on a great idea on how to implement touch capability to PCs as well as just about anything else.  Instead of building it into a device at great expense, Displax has created a membrane that can respond to up to 16 touches concurrently.  Treating this more like a peripheral such as a high end mouse ought to keep the cost reasonable and all you need to do is plug it into something compatible and start touching!
“Light Blue Optics already blew our minds up with its touchscreen-creating projector, but it looks like Displax will be the one to really turn the touchpanel into a modern day commodity. The Portugal -based company is trumpeting a new polymer film that can be stuck onto or just under glass, plastic or wood in order to transform a vanilla surface into one that responds to touch and airflow.”

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