Here is “Argument analysis: Is tribal court civil jurisdiction over non-Indians truly a constitutional issue, or one of settled precedent?”

The best line (from a very good analysis):

The outcome of this case is tough to call after the argument. It looks to be a case that may be decided on a tight vote. But one thing is absolutely certain. Regardless of the outcome, sophisticated tribes and businesses will spend increasing amounts of energy at the bargaining table fashioning partnerships where consents to applicable law and forum are clear and express.