Cara Black and Leander Paes won the 2010 Australian Open Mixed Doubles title. They defeated Ekaterina Makarova and Jaroslav Levinsky in the final match. Final Score: 7-5, 6-3
Well according to the Australian Open website, Cara Black and Leander Paes (top seeds) d. Ekaterina Makarova and Jaroslav Levinsky - 75 63.
The pair who won the Mixed Doubles title in 2012 are Bethanie Mattek-Sands and Horia Tecau, of USA and Romania, respectively.
The current amount of money won by beaten finalists at the Australian Open is as follows: Singles -$1,215,000 Doubles - $237,500 Mixed Doubles - $67,500
Men's & women's singles: $1,370,000 Men's & women's doubles: $446,020 Mixed doubles: $134,460
Mahesh Bhupathi and Sania Mirza of India.
Katarina Srebotnik and Daniel Nestor won the 2011 Australian Open Mixed Doubles title. They defeated Chan Yung-jan and Paul Hanley in the final match. Final Score: 6-3, 3-6, (10-7)
Evonne Goolagong-Cawley She won seven in singles (four Australian Open, two Wimbledon and one French Open), six in women's doubles, and one in mixed doubles.
The last Australian to reach an Australian Open final was Lleyton Hewitt, who was defeated in the Men's Singles final in 2005. The last female player to reach a singles final was Wendy Turnbull in 1980. In doubles, Todd Woodbridge in 2001, Sam Stosur in 2006 and Paul Hanley in 2011 were the last Australians to reach finals in Men's Doubles, Women's Doubles and Mixed Doubles, respectively.
Venus Williams has won many tournaments in Singles, Doubles, and Mixed Doubles Singles- Wimbledon: 2000, 2001, 2005, 2007, 2008 U.S. Open: 2000, 2001 Doubles- Australian Open: 2010, 2009, 2003, 2001 Wimbledon: 2009, 2008, 2002, 2000 U.S. Open: 2009, 2000 Mixed Doubles- Australian Open: 1998 She also won the gold in the 2000 Sydney Olympics for singles and doubles, and gold in the 2008 Beijing Olympics for doubles