I think with this system, I should invest in soft cloth materials and screen cleaning fluids, as I imagine there would be a big need to clean off all the fingerprints and smudges. It's like, when they said in the late 80's, early 90's, "paperless office", I should've understood that as a cue to invest in a paper mill. I seem to print more in my paperless office than before.

With this concept demo, I liked what I saw. Would I want to work with it 8 hours a day? No. Why? Because holding my hands and arms up, moving them around the screen gets tiring. Fatigue with these type of systems do set in. It's like holding a lightpen to the screen all the time. You get tired of it. Gosh, I get tired of holding my pen to paper. All those essays in college...finger cramps.

There's nothing that beats physical feedback when typing is involved. In the early 80's I had to use a flat keyboard. It had a membrane. Eventhough the computer beeped when a key was pressed, it was not an enjoyable way to type.

For me, I like to rest my elbows on the table. I could imagine some company making a type of arm brace that attaches to a table where you can rest your arms and yet have full mobility for this type of system.

Actually, I rather jack-in to the computer with a port connected to the base of my neck and become one with the computer. ;-)  Now that would be cool.