++herveus. I've been doing some similar work recently with pinyin representations of Mandarin Chinese, so I can definitely appreciate the need to have text conversions that are English-keyboard friendly.

As for namespace, Text feels right to me -- better than either String or Lingua (I'm assuming that the Daud encoding is not tied to any particular language). On the whole, Text::Daud seems like a logical choice.

Can't wait to see the code ;-)