11. A method of multilanguage text input in a handheld electronic device, the method comprising: implementing a multilanguage text input application in the handheld electronic device; implementing at least one additional application in the handheld electronic device; employing a plurality of language databases containing language data from a plurality of different languages usable by at least the multilanguage text input application; and employing an interface to communicate with the multilanguage text input application and the at least one additional application, the interface providing the multilanguage text input application, at the time of the multilanguage text input, with data from more than one of the plurality of language databases in response to a single request for data from the multilanguage text input application to the interface, the interface further providing the at least one additional application with data from at least some of the language databases accessed for the multilanguage text input application.
13. The method of claim 11 , further comprising: employing as the at least one application the text input application and a spell check application; and including in the different languages of the language data a plurality of words usable by the text input application and the spell check application, and frequency data for the words usable only by the text input application.