This Wiki contains more than cell phone use ideas but iPod Touches and other handhelds.

Skype gets a lot of attention but some schools that I work with are using Oovoo instead. They think it gives a smoother transfer with less camera jumps.

I am sharing this site because the more I am trying to keep and share content on the web, the more I find my files being in the wrong file type for everyone to access. Zamzar can convert file types that I cannot always do myself.