According to a recent blog post on AVC.com:
"Section 18 of last year's America Invents Act provides for a "post-grant review proceeding for review of the validity of covered business method patents.""
If you are sued or threatened with a suit over a business method patent, you can submit the business method patent to the USPTO for a "post grant review." If the USPTO determines that patent is overly broad or should not have been issued, it will be thrown out in its entirety.
My question is what the time period is to get the review? In other words, if a patent is issued, how long after the patent is issued can someone ask the USPTO for the "post-grant review proceedings"?
It would seem that if the time period is only 1 year (as Fred Wilson states), that affords little protection as a company issued a patent could simply wait 1 year before trying to enforce it.