To answer the question you are asking, yes. You do need to be on the same kernel as froyo.
It is still a GB ROM which is why he answered the way he did, not being used to the way D2 and DX owners use the term "based."
has anyone got this to work? i tried flashing from ota gb.. no go. SBFs to 2.3.2 tried to flash and it just gets stuck at the steel droid loading screen everytime, so i tried sbfing again to 2.3.2.... same thing. looks sweet, but i guess i will wait until there is a clear way of installing it.