9. The method of claim 1 : the device having access to a language store comprising, for respective selected languages, a language pack comprising a word index and a translation mapping for the selected language; and the instructions further configured to, upon receiving a selection of a selected language: request the selected language from the language store; and upon receiving the language pack from the language store, store the language pack for the selected language in the memory.
9. The method of claim 1 : the device having access to a language store comprising, for respective selected languages, a language pack comprising a word index and a translation mapping for the selected language; and the instructions further configured to, upon receiving a selection of a selected language: request the selected language from the language store; and upon receiving the language pack from the language store, store the language pack for the selected language in the memory. 10. The method of claim 9 : the language store comprising, for at least one selected language, at least two language packs respectively representing a language domain of the selected language; and the instructions further configured to, upon receiving a selection of a target language domain for a selected language having a source language domain stored in the memory of the device: request the target language domain for the selected language from the language store; and upon receiving the language pack for the target language domain from the language store, store the language pack for the target language domain of the selected language in the memory.