The only 2006 opinion on the BPAI informative opinion list is Ex Parte Bilski. Bilski is a business method patentable subject matter decision that again flips Ex Parte Lundgren.
The Board held in Lundgren that the "technical arts" test is not a separate and distinct test for statutory subject matter. Although commentators have read this as eliminating a "technology" requirement for patents, this is not what was stated or intended.
The blog Patently Unobvious also wrote about Bilski, as did the 271blog.
Meanwhile, Professor Jaffe was talking to Congress about such patent applications (patents) on 15 Feb.