This excerpt taken from the SIRI 10-Q filed Nov 12, 2008.
The FCC has not issued final rules authorizing terrestrial repeaters.
The FCC has not yet issued final rules permitting XM to deploy terrestrial repeaters to fill gaps in satellite coverage. In November 2001, the FCC issued a further request for comments on various proposals for permanent rules for the operation of terrestrial repeaters. XM has opposed some of these proposals. In December 2007, the FCC released a Notice of Proposed Rulemaking and Second Further Notice of Proposed Rulemaking seeking additional comment on the final rules for satellite radio repeaters. Some of the proposals under discussion in the rulemaking, if adopted by the FCC, could impact XMs ability to operate terrestrial repeaters, including requiring XM to reduce the power of some of its current repeaters, construct and operate additional repeaters to offer the same coverage, or otherwise impact reception of satellite radio service. XM is participating actively in this proceeding, but it cannot predict its outcome or any resulting impact on its business, consolidated results of operations or financial position.