Such may be the case with the famous (or infamous, depending on your point of view) State Street decision which legalized software and business method patents a decade ago
This is the best legal news in a decade for open source. And open source was most definitely involved, evidenced by a Red Hat amicus brief in the case.
Pop some champagne! writes Groklaw. " At issue was whether an abstract idea could be eligible for patent protection. The court says no."
Certainly we are not at the end of this, but for the first time in a long time advocates of software patents have been put on the defensive. This is really big.