Teaching, Technology, and Learning

These new products from NAVIsis piqued my interest. The first is called EZ-Canvas and is a clip that goes onto a standard monitor and turns it into a tablet:

http://www.navisis.com/ENGLISH/03_pro/pro04.php?tmenu=03

The second is similar but goes on a laptop instead:

http://www.navisis.com/ENGLISH/03_pro/img/pro_04_01_01.gif

I am thinking of a computer classroom that I teach in that is filled with desktops. This could be a cheap way to outfit them with tablet functionality so there could be much more interesting student submissions or group work as in Classroom Presenter or Dyknow systems. No price on the website, though.