Finally a voice-guided, turn-by-turn navigation app for Android using the OpenStreetMap project.
• Absolutely FREE – There’s no trial period, subscription, or upgrade necessary. You get all these capabilities absolutely free!
• Voice-Guided/Turn-by-Turn Navigation – Your phone speaks to you, telling you when to make a turn.
• Voice Search – Speak your destination or your search, for hands-free input.
I have had a chance to have a bit of a play with this app, but it still needs little on things like being able to select already cached OSM map data from sdcard that has already been downloaded, the ability to access to Contacts, and have favourite list or personal POI (points of interest) or starred have ever you like to refer to it as. For a beta app it seems to be rather stable on the HTC Desire.