The Volokh Conspiracy has an interesting post on Non-Unanimous Criminal Juries (Eugene Volokh • June 29, 2010): "If I were a criminal defense lawyer in Oregon or Louisiana, I’d use McDonald as a reason to challenge those states’ practice of allowing non-unanimous criminal juries..."
"In Apodaca v. Oregon (1972), the Supreme Court held that the Sixth Amendment requires unanimity for a verdict — but that the Fourteenth Amendment does not carry this rule over to the states, and that even 9–3 verdicts are constitutionally permissible. The Jury Trial Clause is thus the one Bill of Rights clause that is neither completely incorporated against the states via the Fourteenth Amendment, nor completely not incorporated. [emphasis added] (Recall that the Bill of Rights originally applied only to the federal government, and has been applied to the states only through the Fourteenth Amendment.) ...