I've always thought it sad that the personal computer has been limited (so far in its history) to output which stimulates our senses of vision and hearing. What about the other senses, I would think. What about some kind of... smell generator.
The thing that bothered me about the idea was the possibility that someone might hack into my computer and tell it to generate lots of ammonia.. or some other kind of poisonous gas.
But it would appear that the Tokyo Institute of Technology has discovered a way to reproduce a lot of different scents using linear combinations of 96 non-toxic chemicals. Maybe I'll be able to pick up a SmellJet from Office Depot for my Dell in another 10 years. I bet the HP "smell refill cartriges" are going to be expensive.