Is there such a thing as a wireless computer monitor?

Nope, you can INVENT the thing. While you can access your computer through another computer, using VPN technology, you probably could not do this without a person on the other computer from knowing it. You might as well get a nanny-cam and watch. But you can also create a limited account, that has limited access to computer usage. Kids Get Net Wise Great information about Internet Safety http://kids.getnetwise.org/

I dont think they invented that yet. & if they did I think that it would very expensive considering the flat screens run from like $200 - $400 each.

yah there awesome go to frys and get 1 they work really well

Right here: http://www.netbotz.com/cmpns/30DaySurveillance.html

What you're talking about is often called a Tablet PC

First off you have to know that he data sent by your computer to your monitor is huge so it requires more bandwidth than say a mouse or a keyboard. That said, some wireless monitors exists; for instance those small monitors that get data from a camera (for security or just for parents to keep an eye on the baby's bedroom) but those don't have a high resolution/refresh rate. A wireless monitor for a real computer would require much more bandwidth to keep the same quality. I've searched around and saw a few wireless monitors but they were special (one that is only 7" for instance and decent quality but definitely not what you're looking for) You can see another wireless monitor here: http://www.intcomex.com/home.cfm?centralrecnoLOG=14057&levelLOG=public.products3 but its not what you seek either. I think you will have to wait to find the monitor you need because either its not avaible yet or it is but only in very specific fields (security, medical). If you have time you can browse the websites of the main company in that field. Good luck.

Yes, there are wireless monitors out there . . . but for your purpose, I don't think it would be a feasable purchase for you. Normally there is a minimum refresh rate not only to give you your desktop you are used to seeing, but for other applications and games as well. There isn't a wireless monitor out there yet that can support the refresh rate that is needed just to operate your computer in the most basic fashion. Get a dumb terminal with network boot capability. This way you would have all the ability of the server giving the boot commands and all of the applications availible on it (if configured properly) yet still have the monitor refresh rate controlled by the terminal you are working on vice trying to get the rate you need transmitted wirelessly. Not a cheap solution, but a solution none the less.