Probably but I've never made one. I'm talking game world physics. Like how plasma weapons totally work.

: Question two: How well would it handle lateral forces? If the gun is
: recoiling and momentum is holding a scope in place, wouldn't it slide
: forward and lose gripping power?

I imagine that the suck is strong so it wont be a problem.

: Perhaps a hybrid system between this and a Picatinny Rail can be used.

What would be the point? If it doesn't work then it doesn't work. If it does work then what does the rail add?

: Hmm... If you really had control that could be reliably measured in
: nanometers, could this be used in applications that demand a high degree
: of control? Would this offer any benefit to, say, telescope controls?

Yes or cell surgery ;-)