I have used QNX, after reading something on here, I downloaded the floppy version, and tried it out, I was impressed. It is really an OS, with a browser and everthing all on a floppy, I put it in a crash box, with no HD, and hit the net. A little slow, but running off the floppy drive, what would you expect. Very interesting. I would be interested in seeing what the full OS is like, if these guys could pull this off.. May be trying it sometime