I just tested the pens that came with my iRex DR1000, same "penabled" technology, work fine. The included one is actually identical to the one coming with the Edge, just a different color scheme. The other, fancier one (UP-7110E Grip Pen, http://www.wacom-components.com/engl...oduct/pen.html) works as well, except for the eraser and button. Still most comfortable.

Bought it from the iRex store though, which has gone the way of the Dodo, history repeating...