I first got the Motorola Droid and that has the Google turn-bu-turn navigation for free. The Eris Droid, however, had the Google maps but not the turn-by-turn navigation. You can purchase navigation applications but they are not as good as Google. Anyone knows why this Droid doesn't have the Google navigation? Is it the 1.5 OS?
could be the 1.5 version. or it could be that Motorola teamed up with Google (Google logo i actually on the phone itself) and thus is able to have access to Googles maps
I have the Eris and my Google maps has the turn-by-yurn directions
The question is about navigation, not directions. I believe the Google maps nav function is an Android 2.0 feature. Not sure if it's exclusive to the Droid, but I think it definitely requires 2.0 which would mean any other android based handset would not be capable of it yet since everything else out there runs 1.5/1.6 at best.
Google Navigation is native to Android 2.0 shipped with the Moto Droid. The Eris uses Android 1.5. However, HTC should be releasing Android 2.0 with Sense UI for the Eris sometime in the next few months at the latest. The Eris will then have the same Turn-by-Turn Google Navigation as the Droid.
The patch(es) should be OTA....