Looks like somebody pulled the Wikipedia trigger prematurely.
From Radar Online:
Shortly after the news broke that the conservative political radio talk show host was hospitalized, Wikipedia updated his page – and pronounced him dead.
Rush Hudson Limbaugh III (pronounced /?l?mb??/; (born January 12, 1951, died December 30, 2009) is an American radio host and conservative political commentator. He is the host of The Rush Limbaugh Show, the highest-rated talk-radio program in the United States. It airs throughout the U.S. on Premiere Radio Networks.
Guest host Walter Williams led the radio program Thursday noting that Limbaugh, “continues to rest very comfortably in the hospital in Honolulu” adding that “it's not been confirmed that it was a heart attack.”
Limbaugh's Wikipedia entry has since been edited, but its not the first time that their contributors have prematurely published obituaries.