The service went nationwide—covering the continental US—on July 1, following a ten-year development period and a few months of availability in some areas. Earlier this year, between April 1 and June 1, Sirius added 37 states to its coverage area. By July it had added the remaining ones, mostly in the West and Northeast. Sirius claims that its signals can be received clearly not only throughout the states but "hundreds of miles off the coast."
Featuring 60 channels of commercial-free music and 40 channels of news, sports, talk, and…