Elon Musk filed a lawsuit against OpenAI in August — and he just amended it to include Microsoft as a defendant.

A lawsuit by the world's wealthiest man against one of the fastest growing companies of all time is necessarily interesting stuff. But while the

Elon Musk, an original co-founder of OpenAI, attempted to steer the organization away from becoming too cozy with Microsoft when it was negotiating an early cloud computing deal with the Redmond company.