The efuse paranoia has, to a large degree, already been debunked. DroidLife[0] quotes BGR[1] as saying:

"The current theory being put forth by the non-alarmists in the Android hacking community suggests that the DROID X is locked in a similar manner to the Milestone. Though it may be difficult to crack, and may lead to many hairs being pulled out, mucking with the bootloader probably won’t brick your phone."

[0]http://www.droid-life.com/2010/07/15/enough-with-the-efuse-t...

[1]http://www.boygeniusreport.com/2010/07/15/reality-check-modd...