Virtual Lightbox

In the TAPoR project we are trying to figure out how to have virtual meetings on a regular basis (following the Extreme Programming model). James Chartrand has been using MSN and voice over IP to work with programmers at Ottawa. We are going to try The Virtual Lightbox that Matt Kirschenbaum and colleagues at MITH have developed. This should give us a visual space for back of a napkin drawings.

Does anyone else have experience in what works?