I don’t think there is a whole lot to say about this one, it’s pretty stragiht forward. But I have found myself watching bits and pieces of the NASA TV app lately on my iPad. There are frequent live feeds from the international space station, where you can watch the astronauts float around as they get their day-to-day work done. There are also some interesting documentaries and clips – I got to see some great information about the Morpheus lander only hours before it would fail in a fiery crash.
It’s free, and comes with that wonderful feeling of satisfaction in knowing that you are paying attention to something that more people should be watching!