Google Maps----features still missing?

As much as I liked the improvements Google made to their maps, it's still missing the most important feature:

Offline navigation.

And no, I don't mean that piss poor excuse of caching parts of maps to save for later. That serves little to no funtion. Why would I want to download mutiple sections of maps that can't give me voice guided turn by turn directions?

This feature, true offline navigation, would seal the deal for myself personally. How about you all?