As the resident satellite radio junkie, this bit of information definitely makes my ears perk. Mel Karmazin, the Sirius head-honcho, talked before a House Judiciary Committee Antitrust Task Force about the merger and some a la carte programming packages that may be in the works. He said that there is no current way to pick and choose a completely customized subscription, but there may be "tier packages" available in the future. For example you could pick and choose between music, sports, talk and family tiers. He also added that that the current $12.95 price tag is a ceiling and these tier packages would allows users to get satellite radio for less. Good to hear, Karmazin.
Karmazin on post-merger packages and pricing [Orbitcast]