Ru Shou
I'll still go for the foldable keyboard, first because it would feel better, just the thought of my fingers having to strike a hard surface that doesn't give any just gives me the creepy image of my fingers becoming bloody blisters.
gonk
*Shudders*
The foldable one, at least you can at least place it on a towel or something of the sort. Also, it seems that a light keyboard would have problems, such as how does it know that you really want to press the key, do you have to hold your fingers in the air and have no sort of rest for them?
I actually own a foldable keyboard due to a horrible accident that involved orange soda in which rendered my keyboard useless. It was funny, when I would hit z, it would instead hit F5.
My roommate would complain about my foldable keyboard since it wouldn't give the same feedback and indication whenever one would type. Like, with standard keyboards; there's the pressure from the springs that restores the keys and the slight clicking sound that it makes to register a keystroke in one's mind. However, being forced to use that keyboard, I actually got quite used to it and my mind just got over not hearing the sound or getting the same satisifcation from the normal keyboard.
Likewise, I assume the same would apply to these laser keyboards. At first, the registering of typing would be counter-intutiatve, but one would get used to it after awhile.
Also, not sure, but I believe that the keyboard would register the moment of the fingers, rather than their position for the keystrokes - thus finger tips lying on the surface wouldn't register. However, the delmia would be if one is actually holding down a key. I really wonder how that will work out.