For a research prototype, this isn't as strange as it seems.

Initial development of the platform began in 2001 as a research prototype funded by the Greek government.

Planz is a research prototype rather than a commercial product.

"While there are currently no commercial probabilistic database systems, several research prototypes exist..."

The Sun system will be a research prototype; the company is making 300 of the systems to be used internally.

He implemented a policy of research, prototypes and mass production which contributed quickly to France leadership in the aeronautical industry.

Besides Geocaching, there exist several other location-based games which are rather in the stage of research prototypes than a commercial success.

The advantages of the 2.3 μm wavelength were identified, and a research prototype was demonstrated.

The research prototype, which contains 80 specialized math processors controlled by a single general processor, will be commercially available within five years, he said.

A research prototype has been created, which is still conceptual at the moment.