This morning during a press conference, when asked what work John McCain did as Chairman of the Senate Commerce Committee that helped him understand the financial markets, Holtz-Eakin said "He did this" and he pointed to his BlackBerry. Holtz-Eakin continued on saying "Telecommunications of the United States is a premier innovation in the past 15 years, comes right through the Commerce committee so you're looking at the miracle John McCain helped create and that's what he did."
So we can all now thank John McCain for the Blackberry, just like we can all thank Al Gore for this great invention of the internet that is allowing me to post this.
Source: http://www.gearlog.com/2008/09/adviser_john_mccain_invented_t.php