We haven't heard much out of Sirius and XM since they were sued, following their attempt to merge. Though the merger has been rocky at best, the FCC has apparently given the go-ahead to both companies provided that they follow some "voluntary" restrictions that might actually make satellite radio more appealing.
For one, it seems the companies will, within a year of the merger, create "dual-service" receivers that function with both Sirius and XM stations. That seems like a no-brainer if the companies become one, but the second part of the interoperability statement is what is really interesting. It seems the companies will allow any third-party to manufacture compatible equipment, with no restriction, giving radio manufacturers all the room they want in designing custom receivers.
Some other conditions include a price rate lock and not making exclusive deals with hardware manufacturers for receivers. None of that is nearly as exciting as an "open" receiver, however.