Location data gathered by the phones we call carry around every day is also not well protected by ECPA. While the Fourth Amendment law gives warrant protection against location information collected through a physical trespass, that limitation is weak since other tools can be used to avoid such legal hurdles.
Once you're up and running (and connected to the Internet) you can "tune in" about 300 radio stations from around the country, choosing by format, location, or call letters.