Developer Edition phones answer a need of a certain slice of the market: those power users that want to do extreme modding, tweaking, hacking. Some OEMs who usually lock down bootloaders with no unlocking solution in sight prefer to release “developer edition” phones with special conditions (usually loss of warranty) so that they don’t have to put up with the consequences of the masses going all power-user on devices.
If you like the Motorola Atrix HD but are turned down by the locked bootloader on it you can now turn your attention to the Developer Edition of the phone. In terms of aspect and internals it will be exactly the same as the locked-down unit, only that you’ll be able to do all the crazy stuff you’ll want. There is no word on pricing and availability just yet but you can sign-up to be among the first to find out details.