Rush Limbaugh, “Pelosi the wicked witch is dead; the shortest serving Speaker in History”
http://www.youtube.com/watch?v=xhXDS4lgdgY&feature=related
"Shortest term of Speaker
Elected Speaker of the House as a sign of respect from his colleagues on March 3, 1869, Theodore M. Pomeroy of New York served for the closing day of the 40th Congress (1867–1869)." - link
According to this page, there have in fact been 34 Speakers (about 2/3 of the total number) with shorter terms than Pelosi. This includes Newt Gingrich.