This is so awesome. Building and deploying a satellite is now so much more accessible. Combine cheaper with open source technology, and you get brilliant educational opportunities, such as the ArduSat project mentioned earlier.
Here is the link to an article that provides an overview of the various cheap satellite technologies currently used, and some of the things getting done.
The activities embedded in the programs make the subjects more engaging for the students as well as the teacher.
Trent Perry, Teacher