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On 12/8/2012 2:34 PM, wrote:
Someone told me they have a smellphone. I guess thats for smelling
other people or their house or something like that. But how does it
work?

Similar to how those plug-in air fresheners works. A resistive heating
element heats a solid block of wax impregnated with scents, and a small
fan blows the air toward the user.

You can read more about it at
http://www.scentsciences.com/products/scent_scape.html. However their
system can't sense odors, digitize them, then recreate them. In other
words, it's more for smellovision than it is for a smellophone.

This is not the first company that's tried to commercialize odors for
use with computers and game consoles. There are a lot of technical and
legal issues to overcome.