Earlier this year, Motorola had pledged to unlock the bootloaders on every one of their devices before 2011 year's end. Well that didn't happen. And even worse, they haven't let the community know when or even if they are still going along with this plan.
An unlocked bootloader allows users to modify the software included on their device. It isn't important to many, but to the developers out there it means the world. With their own cooked up kernels and ROMs, they push devices way past their original thresholds.
HTC has undoubtedly been the best manufacturer at making sure their devices are completely unlocked for their customers. Motorola has potential, but haven't conveyed a gameplan for at least 4 months. Hopefully, the petition started over at XDA Developers will overturn their silence and raise clarity on the subject.