When you're at this year's Chaos Communication Congress (31C3) and interested in RF/satellite hacking, you should make sure to find your way to Saal 1 on Day 2 at 16:45 (localtime) to enjoy Sec/schneider's talk about Iridium Pager Hacking.
After seeing xfce-planet in action @MUCCC, Sec used it to create this awesome timelapse video for more presentation eye-candy, showing all Iridium satellite positions and orbits. Very nice idea indeed!