On first release, Motorola Unlocking Tools only support Sprint Photon Q 4G LTE, now Motorola has fulfilled its promise to add more devices including Droid RAZR M and upcoming Droid RAZR HD. Sadly we must say, in order to unlock the bootloader using this tool, you should purchase the developer version device, not a phone that you buy along with Verizon Plan.
For RAZR M Developer Edition you can get it for $549.99 without a Verizon plan, and for the RAZR HD Developer Edition will be available before the holiday this year. All the developer edition devices come with an unlockable bootloader, for some people who like to modify their devices, unlocked bootloader is required before install a custom/unofficial ROM or maybe to gain root access.
So for those who plan to root their phone, it seems like you have to buy the developer device, we won’t say that get root access on a non-developer device is impossible, of course there is the possibility for it, but it’s not easy and it took quite a long time, as experienced by Motorola Atrix HD users who haven’t been able to gain root access until now.