With over 4,000 different devices released in the last year alone, the Android ecosystem is massive. That kind of scale can lead to a lot of copyright confusion and patent squabbling on the platform, which Google would probably like to avoid in the future. So, to save everyone the licensing headaches and unnecessary lawsuits, Google has just announced PAX — a short acronym for the long-winded “Android Networked Cross-License Agreement.”

Source: Google hopes license sharing will stop Android patent trolls