When the Droid DNA was first announced, we were all surprised to find that the bootloader was unlockable at HTCdev.com. Because of this, the device actually got root, recovery, and custom kernel days before the official release. Unfortunately, by the time the device became available in retail channels, Verizon pulled the plug and it was no longer unlocked through official means.
Thankfully, there's another way (isn't there always?). The softmod below will effectively change the carrier information, allowing it to once again be unlocked via HTC's official tool.