From any mobile phone in the United States or UK, you can use Google to do simple language translation, as well as currency conversion.

By sending a text message to 46645 in the US, or 64664 in the UK (GOOGL or 6GOOG, respectively), you can translate a word or simple phrase into French, German, Italian, Portuguese, and Spanish - to or from English.

Just enter 'translate' or 't' followed by a word or expression, and the languages to and from which you want it translated (e.g., 't gas station from english to german').

To convert from one currency to another, simply enter the conversion you'd like completed (e.g., '3.5 USD in GBP').