So.. You have your new iPod touch and now you want to share the image with your students/workshop participants etc..
Here are a few options..

http://www.ipevo.com/Point-2-View-USB-Camera_p_70.html

iPevo_point_to_view_Webcam.jpeg ipevohandheld.jpeg

iSight Camera on a flexible stand

(mac with firewire only)

http://www.welovemacs.com/sightflex.html
Sightflex.jpeg


iFlex iSight FireWire Flexible Cable

http://www.welovemacs.com/iflexfirewire.html

iflex.jpeg