Today at 10:00 a.m. Eastern, the U.S. Supreme Court will hear oral argument in AT&T Mobility LLC v. Concepcion, no. 09-893. AT&T's reply brief (which consists mainly of a frontal attack against the validity of Discover Bank) was only just filed eleven days ago, on October 29, 2010.
Transcripts of U.S. Supreme Court arguments are generally available within hours after the argument takes place. When it is posted online, the argument transcript in Concepcion should be available at this link. (Also, here's the link to the main argument transcripts page.)
Sunday's San Francisco Chronicle had an opinion piece called "Supreme Court case could end class action suits," and on November 5 the Los Angeles Times reported that "Consumers' right to file class actions is in danger." The American Bar Association's preview of the case summarizes the proceedings and holdings below and the arguments made in the briefs. [Links via SCOTUSblog.]