I think out of all the "things" we have learned about, podcasts are the things I knew the least about. I always associated them with iPods and I didn't realize that a podcast could be supported without one. I realize now that the main differences from streaming video are the method of delivery (through RSS) and that podcasts are episodic in nature. I subscribed to CNN News Update through Bloglines.
I like the idea of using a podcast as a daily news show for the school. A great project for any class would be to have the students create their own.