I'll definitely be playing with this more over the next few days. our science department is trying to get the students using their graphing calculators more. The problem is that I'm the only science teacher who knows how to use my calculator. So, I'm creating a series of tutorials for the other teachers. I'm using Virtual TI, a great (free) calculator emulator and capturing in Jing.
Below is the first in the series of tutorials. You can get all of the here, or you can subscribe to the RSS feed to get them all and any I create in the future.