The petition is here. The question presented was:
Did the Court of Appeals for the Federal Circuit err in restricting district courts’ equitable discretion in evaluating patent unenforceability, contrary to this Court’s precedent in Keystone Driller, Hazel-Atlas, and Precision Instrument, by applying a rigid test that (a) forecloses district courts from considering the entire circumstantial record; and (b) precludes district courts from granting equitable remedies where a patent applicant has violated the PTO’s duty of candor.
Update: the rest of the briefs are here (response to petition), and the SG's brief is here.
I still don't think Therasense is a proper construction, and I also still think the issue of its retroactivity could still lurk out there for someone to raise…