Ispro: Before jumping to conclusions on McAfee...
All the new PC technologies hitting the market are going to leverage the TPM: NAC lying endpoint control, secure boot-up for virtualisation, certificate based authentication, etc.
McAfee, SECUDE, and others that offer an interface to the hardware based FDE drives DO NOT OFFER, nor do they have the capability to manage TPMs.
As this week progresses I think we'll see that all the FDEs to be announced will be interchangeable (plug'n plaÿ) within Wave's offering. All this in addition to TPM management.