The Class Action lawsuit that was filed against XM Satellite Radio Holdings Inc, on behalf of purchasers of XMSR common stock has been dismissed by the judge.

An SEC disclosure has been filed giving a bit more detail:

Securities Class Action Litigation Dismissed. On March 28, 2007, our motion to dismiss the previously disclosed securities class action litigation was granted and the case dismissed with prejudice. The court concluded that “plaintiffs have failed to identify any materially misleading statements or omissions that are actionable under Section 10(b)” of the Securities Exchange Act of 1934.