This is the latest, but wouldn't count on VZW stepping up to support their BB10 customers once they get it (they may already have it), there will likely be delays of at least 6 months based on their track record with BB10....
Doubtful the VZW reps are even aware yet, let alone a real interest from above to keep them one step ahead on BB10.
Based on customer experience, this is an Apple, Droid, WinPhone supporting carrier, even though BB10 has already been rated the best mobile OS on the market above all 3 of the previously mentioned and it's still in its early stages. Even Google knows it, which is why there's now sources reporting BB may even be coming out with an Android device with patented BB features, security, etc to go head to head with NSApple. BB10 already handles droid apps very smoothly, and with this next update, one will be able to get them directly from the Amazon app store right on their devices.
But, you know, gotta protect the chosen top 3 at them moment...at least until Google and BB team up to change this game.