お前ら「I can't speak English.」siri「仕方ねーから日本語対応してやるよ」
Language Support and Availability
Siri works exclusively on iPhone 4S. Siri understands and can speak the following languages:
English (United States, United Kingdom, Australia)
French (France)
German (Germany)
In 2012, Siri will support additional languages, including Japanese, Chinese, Korean, Italian, and Spanish.
http://www.apple.com/iphone/features/siri-faq.html