The new keyboard supports at least 30 different languages and locales, allowing for flexibility and re-enforcing the fact that BlackBerry is primarily a communication device. You can enable "Simultaneous Language Input" for up to three languages at a time by navigating to the Settings>Language and Input>Input Languages page.
Switching keyboards from "western" and "eastern" types is also a breeze and can be done in one smooth motion. The new keyboard supports QWERTY, AZERTY, QWERTZ, and localized QWERTY keyboards for different languages.
As a bilingual English/Spanish speaker, I'm definitely excited for this new feature which will help avoid unnecessary text corection. Do you communicate with friends and family in more than one language? Which ones? Let us know in the comments if this is one of the BlackBerry 10K reasons to believe in the comments.