Here is a (long) 18-minute video demo from ZDNet:
And directly from the TeleNav Website we can see the list of features promised for TeleNav for the T-Mobile G1:
- Turn-by-turn driving directions by voice and onscreen.
- Business Directory with more than 10 million points of interest
- Full-color 3D maps nationwide
- Audio traffic alerts and one-click rerouting
- No more expensive 411 calls
Drive to:
- 3D moving maps in landscape and portrait mode
- Name and address speech recognition
- Automatic reroute if a turn is missed
- Traffic alerts and one-click rerouting
Search:
- Business finder
- Gas by price
- Search along route
- Restaurant ratings and reviews
Maps and Traffic:
- Current location map
- Business locations map
- Map, traffic and route summary views
And More:
- Commute alerts
- Current weather and five-day forecasts
- Night-time map color