Apple: 1 Microsoft: 0

http://www.boingboing.net/2006/11/01/apple_drops_trusted_.html

excerpt:

Apple drops Trusted Computing
Amit Singh has a fascinating technical article on Apple’s use, non-use, and ultimate abandonment of the Trusted Platform Module (TPM). This is the core of the Trusted Computing initiative, a chip that can, depending on implementation, be used to lock you out of reading your own data on “unauthorized” applications, to allow network service providers to discriminate against users of alternative software (e.g., “You’re using Firefox — go get Explorer and come back”) and enforce DRM — but also allow you to better secure your own data (you can do the latter without enabling the former, too).