Warning: PGP WDE and Filevault 2

If you plan to use Filevault 2 in Mac OS X 10.7.2 and you had previously the PGP whole disc encryption installed, you can get intro trouble.
Because as long as PGPwde.kext is in the /System/Library/Extensions folder, your Mac will not boot.
You can of course go in target disc mode and remove the file by mounting the disc on another Mac with Lion.
For me, it's the third time PGP WDE shocked me and certainly the last day it will be allowed to exist on my Macs. The biggest plugin in space...