More on the In re Bilski decision may be found at Jim Singer's IP Spotlight:
The most interesting part of the Court’s decision may be its express disavowal of being the final word on the patentability of business method and software patents. The Court acknowledges the temporary nature of its decision, stating that:
We recognize that the Supreme Court may ultimately decide to alter or perhaps even set aside this test to accommodate emerging technologies. And we certainly do not rule out the possibility that this court may in the future refine or augment the test or how it is applied.
Read the full post here.