Nokia recently acquired Lucent and Bell Labs... So the answer is probably "a Finnish telecom equipment maker that many people mistakenly assume was bought by Microsoft".

Alcatel, Alcatel not Nokia bought Lucent.

Yes, and Nokia bought Alcatel-Lucent this year.

Wonder how much cash it would take to get Plan 9 open sourced under MIT / BSD license?

The licensing became a lot more reasonable after the episode in 2003.

Licensing info here:

https://en.wikipedia.org/wiki/Plan_9_from_Bell_Labs#License

http://www.vitanuova.com/inferno/licence.html