Microsoft announced they won't support EFI in Vista... that means... no booting Vista on those nice, new Mactel's...

Microsoft revealed today that it will not support EFI booting for Windows Vista on its launch. The news will be a shock for owners of Intel Macs who had hoped they would be able to dual-boot between Windows Vista and OS X. Intel Macs only support booting via EFI.
Well... wait, there's a bit o' hope...

Speaking at Intel Developer Forum San Francisco, Microsoft development manager, Andrew Ritz, also revealed that there will never be any support for booting Windows via EFI on systems with 32-bit processors.
But that means the current EFI on the MacTel boxes will have to be upgraded to 64-bit from 32-bit EFI.

so close... so very damn close.

Oh, read it all here...