But the field could develop fast, as prototype picosatellites can ride along with other missions at almost no extra cost.
It would be unfair to describe the Samsung Galaxy S III as a prototype of the next iPhone.
FORBES: The Next iPhone Will Be Very Fast, It Will Have To Be
Completed in 1976, Enterprise was designed as a prototype test vehicle.
CLARKSTON, Michigan (CNN) -- A new era in education is dawning in a Detroit suburb, where Clarkston High School may serve as the prototype for high-tech schools of the future.
What began as a prototype built around a tower of Arduino shields is now a small first-run integrated board with spots for connecting XBee radio cards and a small LCD display.
The EnergyBuddy -- first unveiled as a prototype at CES but just now inching toward a full launch -- is a complete home energy-tracking system brought to you by Cali-based startup FutureDash.
But as these visions are developed, their potential to become a reality will depend on the success of facilities such as the Jurong Caverns -- considered by Tan as a prototype for underground developments in Singapore.
If it all works, and if people actually like it, the Wellcome wing may come to be seen as the prototype for an entirely new kind of science museum a museum of the future, indeed.
The Joint European Torus (JET) is located in Britain, which is the largest such facility in the world and may be regarded as a prototype for the International Thermonuclear Experimental Reactor (ITER) based in France.
Originally expected to be launched in 2012, a further delay to the A350, which has not yet been built as a prototype, could put it a full six years behind Boeing's launch of its 787 Dreamliner, the model with which the A350 was expected to compete.
Further down the road, Nokia will unveil its Kinetic prototype as a real product.
FORBES: Nokia and Microsoft Aim For Google In Smartphone Wars; Nokia's New Phones
Then they refine the model based on how the prototype performs, and they modify the prototype as needed.
The latter was described as a "prototype" but will be available in March.
It might be a pair of shoes, printed in solid form as a design prototype before being produced in bulk.
In addition to playing up the pixel count, Samsung touted its prototype as a "green panel, " claiming 30-percent lower power consumption than existing LCDs.
The firm will unveil the prototype as part of Techfest - an annual event where its researchers reveal some of the projects they are working on.
Of course, I was driving a prototype, as opposed to one of the 500 total production units Lexus initially said it would manufacture.
If ASUS is keeping two OS's as per the AiO prototype, that processor caters for only one Microsoft product -- Windows RT.
ENGADGET: Mysterious ASUS P1801-T visits the FCC, might be the finished Transformer AiO (updated)
Its advanced engine-development centre, which opened this summer, hooks up an engine to a simulated computer model of an as-yet unbuilt prototype car, to see how well it performs.
Scout now pulls your vitals in ten seconds using just optical sensors, which enables it to read the vital signs of others -- as opposed to the prototype which utilized an EEG sensor and could only record the info of the person holding it.
To make it work, you connect a Windows PC to the device, which consists of a pair of 960 x 540 Epson displays embedded in the transparent glasses (with a detachable shade, as shown in the prototype above), and a depth sensor attached to the top.
That year, as Boeing assembled the first prototype 787, it became clear suppliers were struggling to make their components.
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.
As you know, we published images of the iPhone prototype last Saturday, so we're tracking this story as closely as we know all of you are.
ENGADGET: Police investigating lost iPhone prototype raid Gizmodo editor's home
That makes them easy to lose in a junk drawer--as we did with a nonfunctional prototype card sent to our offices a few months ago.
And while MakerBot still seems a ways away from the final product, the company used SXSW as a platform to unveil a prototype of its MakerBot Digitizer Desktop 3D Scanner.
As ASUS' dual-OS prototype all-in-one is the only (sort of) tablet we've seen with roughly that many inches, we assume the company is getting paperwork done before a proper launch at CES 2013.
ENGADGET: Mysterious ASUS P1801-T visits the FCC, might be the finished Transformer AiO (updated)
It's essentially the marriage of an Xbox 360-style GamePad to a 5-inch screen, all powered by NVIDIA's brand new Tegra 4 mobile CPU. But the device's origins aren't quite as glamorous as its form, even in prototype stage.
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