Thousands of people use Marble on the Nokia N900 to find their way and explore the world. Become their voice! Record your voice speaking a handful of turn instructions like Bear left! and participate in the Voice of Marble contest. With a bit of luck you’ll become the voice of Marble: Your voice will be used as the default speaker for voice guidance in Marble’s next version 1.2 (to be released in July 2011).
Today we’re starting the Voice of Marble contest to collect voice guidance speakers from the community. We’re looking for an english speaker to be shipped with the Marble packages. And we’re looking for alternative speakers for each language supported by KDE — at least one each, and that’s a lot! Please participate in the contest and spread the word among your friends. The five best contributions will get a cool Marble T-shirt as a little present.
Interested? Please head over to the Voice of Marble wiki page which contains all the details you need to participate. The deadline for submissions is July 15th. I’m looking forward to your contribution!

Might be cool to have a version where everyone gets to say one direction each. Like having a whole bunch of people in your car.
How about listing what phrases are needed?
Bugsbane: Just follow the link to the wiki page
http://community.kde.org/Marble/VoiceOfMarble
and you can see the list of phrases there:
http://community.kde.org/Marble/VoiceOfMarble/Translations
There’s also a recording tutorial available there:
http://community.kde.org/Marble/VoiceOfMarble/Recording
and some more instructions for upload:
http://community.kde.org/Marble/VoiceOfMarble/Upload