A possible solution to your problem is a product made by Viewsonic called the Viewsonic AirPanel weblink is:
I purchased a Viewsonic AirPanel V150 (15-inch wireless monitor) from TigerDirect, but ViewSonic doesn't make the 15-inch V150 anymore. I purchased a docking station for it, and while it sits on the docking station it works like a normal LCD monitor for that particular computer; however, when you lift it off of the docking station, you can set it up to connect to any computer on the wireless network. I can take it into any room in the house and access the internet. It weighs approximately 2.9 pounds and comes with a stylus, the battery life is approximately 5.5 hours, recharges automatically when placed on the docking station, and it looks just like a tablet pc but I can choose which computer I want to connect to. The AirPanel connects to the computer on the network much like Windows ''Remote Desktop Connection'', so that the computer the AirPanel is connected to cannot be used. ViewSonic does make a 10-inch monitor version of this product, but I liked the 15-inch V150 product better. Hope you can find one!