This excerpt taken from the SIRI 10-K filed Mar 1, 2007.
Uncertainty about the merger and diversion of management could harm us or the combined company, whether or not the merger is completed.
In response to the announcement of the merger, existing or prospective subscribers, retailers, radio manufacturers, automakers and programming providers of ours may delay or defer their purchasing or other decisions concerning us or they may seek to change their existing business relationships with us. In addition, as a result of the merger, current and prospective employees could experience uncertainty about their future with us or the combined company. These uncertainties may impair our ability to retain, recruit or motivate key personnel. Completion of the merger will also require a significant amount of time and attention from our management. The diversion of management attention away from ongoing operations could adversely affect our business relationships. If the merger is not completed by the end of 2007 as currently anticipated, the adverse effects of these uncertainties and the diversion of management could be exacerbated by the delay.