Impossible, no. Improbable, yes. If I wanted difficult I would've stayed married

Original Droid did not have a locked bootloader.
Droid X, as an example, does and look at the hoops those folks are jumping through. Or what about the
Milestone?
I do not want even the possibility of such a future road for myself where I'm limited in something I may want to do. There was a time I enjoyed hacking and cracking being in IT and all, now I just want things to work with little fuss and spend my time on other endeavors. I do still want to tinker some and customize hence why I'm looking at Android with its feature set.