Robert Maxwell wrote:
In order to say nanotech will be a multi-trillion dollar industry in the near future, you require a definition of "nanotechnology" so broad as to be meaningless. The only reasons to push such an angle are to either attract investment dollars or push some other agenda, but clearly definitional precision is not a priority in either case.
Bringing nanotech materials development into the open, and with the likely success of carbon nanotubes, solar panel materials between now and the predicted 6th processing paradigm before 2020, the explosion of the industry even now means investment dollars for future nanotech, which will include rapid exponential development of assemblers and what people "normally" think of with nanotech. So we can't underestimate the importance of these reports.
The last market report I linked lists a definition and companies for nanotech.