Smartphones approved by DOD

Some recent news items indicate what smartphones the DOD has approved for use.  (read THIS and THIS)

For those not aware, the DOD bases this decision on their Commercial Mobile Device Implementation Plan.

From the news items, they have approved:

• iPhone iOS 6
• Blackberry 10
• Samsung Galaxy devices with Samsung's Knox

That's it.

No other Android devices (which is interesting, as Motorola Solutions came out with a highly secure Android phone recently).  No Windows Phones.  Will they approve more in the future?  Not clear.

For those not aware, Knox is a security add-on to Android created by Samsung.  You can read more about it HERE.

I need to look further into Knox.