Microsoft Anti-spyware Beta software is ready for you to try - it's on time following the Giant acquisition
Michael Swanson beat me to it blogging about the availability of the beta code - if you've not already seen it I recommend checking out his article for an excellent overview.
The beta code itself can be freely downloaded from here.
Our internal testing has demonstrated that it's a useful tool in the battle against spyware and malicious code.
Time to try it for yourself & please give feedback.