No need to code all over again after making your prototype.

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After various tests on the virtual prototype (such as making sure vital systems are insulated from lightning strikes), its ceiling, rate of climb and other handling characteristics are fed into a flight simulator.

ECONOMIST: Manufacturing technology

The technicians at Exeter Mobility Center in Devon created a prototype in five weeks, making a laminated cast of the phone and building it into the limb.

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Although it's currently just in the proof-of-concept, prototype stage (like, it still needs to be plugged into the wall, making it less than ideal for outdoor applications), future versions of the project will sport batteries (of course), sensors for monitoring water quality, cameras for peeping stuff, and even bacteria for breaking down pollutants (think: Exxon Valdez).

ENGADGET: The miraculous CMU Water Runner

Daimler-Benz has been spared the embarrassment of making a decision to abandon the Family Car China, on which it spent tens of millions of dollars building a prototype.

ECONOMIST: Daimler-Benz