Is there any portable/wireless touchscreen available for PC use?

[TezuMi]

I'm getting ready to build my new PC and here's the monitor setup I want, 1 62" HDTV, 2 24" LCD's side by side, and a wireless touchscreen. I'm going to have the HDTV on one wall and the 2 LCD's on the wall perpendicular to it, so I thought a wireless touchscreen would be cool. I've got everything except the wireless touchscreen covered. Any ideas?

 

[hardbench]

Never heard of anything like this, so if you find out please let us know!

 

[JackMDS]

You can get a Tablet PC with WIFI, install UltraVNC, and Voila, you have a Touch screen that can control computers.