Some Windows 8 hardware already not compatible with Windows 7

Billly Gates writes: This will make many Windows 7 users upset who expect to buy a new Windows 8 tablet or netbook to put Windows 7 on it. The problem is Intel's new clover Trail chipsets. Computers affected include our the Asus EEE line and some Fujitsu tablets so far.

In addition some Cedar Trail chipsets have the opposite problems of not being Windows 8 compatible. Intel executives mentioned users need to pick one or the other Intel Atom chipsets and stick with that OS. Many are blaming intel for the lack of drivers. Or could this be related to TPM 2.0 which is secretly on some new Windows 8 machines that refuse to run unsigned operating systems?