Generic Functions, Patentable Functions

Mike Masnick's piece on Alice v CLS Bank more or less follows the lines I'd expect. However, he points out that Thomas's opinion, rejecting the Alice patents because of generic computer implementations, doesn't give good guidance because the same argument could be made about any computer program. In essence, Masnick argues, SCOTUS is continuing to pretend that some software is patentable and some is not, while refusing to give examples or guidelines for drawing that distinction.