John
I too have a multi touch tablet and I found this to work with All capacitive touch screens devices. The Smalleye -island works with my tablet.

I received the SmallEye stylus today and it does work with that Dell touch monitor. It works very well for anything on a push-button nature (mute button, e.g.). Things that involving or a more delicate touch don't work so well. For example, I have the Aria player on screen. If I use the stylus to touch the simulated keyboard, the keys always show the touch, but I can only get them to sound about 1 time out of 20. I don't do much better with my finger. If I slide my finger or stylus along the simulated keyboard, all the notes play a gliss. If I click with the mouse, I get sound 100% of the time. I wonder if there is another Windows API the developer has to implement in order to make the touch as reliable as mouse clicks.
Likewise I put the Ozone equalizer on the screen. It was possible to use the stylus to drag the parametric nodes, but it was really tedious -- not nearly as easy as with a mouse. The pen comes with 3 tips, so I may try the other two to see if they make a difference in the above cases.
And of course, none of this registers pressure.
I have continued to search. It seems there are supposedly some Bluetooth pens out there that work like the SmallEye stylus (passively) to register location on the monitor, but also send Bluetooth commands to register pressure detected at the pen. Every one I have seen refers to Apple pads and books. I haven't seen any product of this type that explicitly has Windows support. Has anybody else found such a pen yet? I guess there is very limited need for such a device in SONAR today -- only in the PRV where the pressure can set the controller levels.