Vania King and Nadia Petrova were the defending champions, both of them were present this year, but played with different partners.King partnered with Zheng Jie and Petrova partnered with Gisela Dulko both lost to Daniela Hantuchová and Ai Sugiyama, in the first round and the semifinals respectively.
Alisa Kleybanova and Francesca Schiavone won in the final 6-4, 6-2 against Daniela Hantuchová and Ai Sugiyama.
Vera Zvonareva was the two-time defending champion, but lost to Daniela Hantuchová in the semifinals.
 <br>Daniela Hantuchová won the title, defeating Sara Errani 6-0, 6-2 in the final.
Leoš Friedl and Daniela Hantuchová were the defending champions, but chose to play in different teams for this year.
 Friedl teamed up with Tina Križan and lost in first round, while Hantuchová partnered with Kevin Ullyett and reached to the final, losing in three sets.
Alex Antonitsch and Balázs Taróczy were the defending champions but lost in the semifinals to Jan Gunnarsson and Anders Järryd.
Balázs Taróczy (Hungarian: "Taróczy Balázs" ; born 9 May 1954) is a retired tennis player from Hungary, who won thirteen singles titles in his career.
 The right-hander achieved his career-high ATP singles ranking of World No. 12 in April 1982.
Željko Franulović and Balázs Taróczy were the defending champions, but did not participate together this year.
 Franulović partnered José López-Maeso, losing in the quarterfinals.
 Taróczy partnered Heinz Günthardt, winning the title.
Daniela Hantuchová (] ; born 23 April 1983) is a retired tennis player from Slovakia.
 She turned professional in 1999 and had her breakthrough year in 2002, when she won her first WTA tournament, the Indian Wells Masters, defeating Martina Hingis in the final and becoming the lowest-ranked player to ever win the tournament.
 She also reached the quarterfinals of that year's Wimbledon Championship and US Open, ending the year in the top 10.
 She was part of the Slovak team that won the 2002 Fed Cup and the 2005 Hopman Cup.
Ekaterina Makarova and Elena Vesnina were the defending champions, but Makarova withdrew due to injury.
 Vesnina partnered up with Daniela Hantuchová, but they retired in the quarterfinals due to Hantuchová's injury.
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Victor Pecci and Balázs Taróczy were the defending champions but did not compete that year.
Bob Hewitt and Frew McMillan were the defending champions but lost in the final 6–3, 6–7, 6–4 to Victor Pecci and Balázs Taróczy.

Question: Are Daniela Hantuchová and Balázs Taróczy of the same nationality?
Answer: no