Satellite radio is one of the geekiest yet most widely embraced new age techs around. People are loving it, and it is growing faster each year. Sirius, one of the two most popular providers, recently hit one of their initial goals of three million subscribers. While not as beefy as competitor XM, it's still a huge number and demonstrates the popularity of satellite radio, for both home and travel purposes. Just a few short months ago they had around 2.17 million, showing just how much it is being picked up. With more radio hosts such as Howard Stern and Phil Hendrie endorsing satellite radio as the future, we can only expect these services to grow.