unrevoked = standard root + recovery
unrevoked forever = SOFF (meaning security is turned off at the radio and you can forever flash any valid rom/update even if you do an OTA that removed root and/or recovery, just flash a new amon/clockwork).
I believe that the latest unrevoked does include/run unrevoked forever also, but if you already rooted and have a custom recovery, you can simply flash the unrevoked forever directly.
Past: Sprint + EVO 4G ~ ATT Fuze + EnergyRom ~ HTC EVO 3D ~ [s]HTC VIVID[/s] ~ HTC EVO View 4G ~ iphone5
Present: Note 2 ~ HTC One ~ Nexus 7
Originally Posted by mmastrac
I'm terribly sorry that the stuff we do in our spare time to fix the limitations that HTC put on a device you chose don't meet with your expectations.