Yep, Cuban founded Broadcast.com, then sold it to yahoo...for $5.7 billions.
Broadcast.com actually originated from Cuban's desire to listen to broadcasts of his alma mater's basketball games (Indiana U.). He developed an app that allowed him to listen in over the internet via his computer -- i.e., streaming.
The first thing he did upon cashing in was buy the Dallas Mavericks, whereupon he lost interest in everything else.
He's a moonbat lib, investing in movies like Redacted -- which portrayed American soldiers in Iraq as brutish thugs.
Whyever Mitt Romney and William Kristol would try to recruit Cuban to run on the Republican ticket is one more indication of their cluelessness.
Ok, I take that back.