They're decommissioning terrestrial repeaters and beefing up Internet content. I think they see the writing on the wall for satellite radio, with its persistent hills/mountains/foliage reception problems. Repeaters can conquer tall buildings, but putting them everywhere there's a dense canopy of foliage is cost-prohibitive.
And one thing we know the company is doing is cutting costs. This month, draconian cuts have been made on many music channels; apparently the Liberty Media folks figure that most folks would rather hear channels that sound like the MusicChoice channels that are on so many of the cable systems that carry Liberty-owned entertainment channels, and DJs, either live or voicetracked, are relics of a bygone time.
I've heard the arguments against taking SXM to the Web, with the emphasis on apps for mobile devices: coverage gaps in the hinterlands, streaming data caps, etc. I have the feeling a lot of those coverage gaps will be filled within the next five years, and the areas that aren't covered will be either too sparsely settled or too poor to matter to New York-based SXM, its investors or its advertisers. SXM's push to get listeners to give up radio for the Internet is already underway. It will only get stronger.