According to OLPC News, the OLPC project is enlisting help translating software for the XO laptop into other languages using Pootle :
How it works is that you go to the localization server for the One Laptop per Child Project. Register by creating a username and password and providing your name and email address. Choose the languages you wish to contribute to, and then the specific file of the project, like “XO Core” or “Terminology.”
Pick a word from the list on the left and write a suggestion in the box on the right. Clicking “Suggest” sends the translation to the server. If your Amharic is rusty, and you’re not quite sure about your suggestion, check the box beside the word “Fuzzy” to let the program know that too.
I’m a dumb ‘murrican, so I’m no help here, but maybe others can chime in?