The Prince already owns a seven percent stake in News Corporation, a "sizeable share" of Citigroup, and is understood to be starting his own cable news channel.
http://ummid.com/news/2011/December/19.12.2011/saudi_prince_buys_into_twitter.htm
http://ummid.com/news/2011/December/19.12.2011/saudi_prince_buys_into_twitter.htm