Twitter Publishes 'Innovator's Patent Agreement'

Twitter announced what could lead to a reduction of hostilities in the patent wars threatening to engulf Silicon Valley: a pledge to do no evil. The pledge, which could become a kind of Hippocratic Oath for tech companies with patents, gives Twitter employees more control over their inventions -- and, most importantly, promises the patents will only be used for defensive purposes and not to block other companies from innovating.