This question needs to be answered.

Nokia promised offline voice-guided OVI maps navigation to all nokia smartphones. Free. FOREVER. post-advertising, I think nokia has confirmed that the N900 is one of the devices for this feature, and it should because of the premium price we paid for.

it's time to stop all this mystery and for nokia to tell us when we are getting free voice guided navigation.

7 months after release is NOT a reasonable time to wait for offline navigation.