It is not available to everyone, but some people are able to beta it, this has been confirmed by Google.
This is VERY good news to publishers. Next I hope google comes out with a way for either us or them to track and refund invalid clicks.
Sounds like a useful way to protect one's adsense account. You know, I had always thought it would be fine if someone decided to use my adsense code and make me money. My trust in human beings and my naivete is showing... _____________________________ Personal Online ATM under $10 | Three-Way Links
Yep, a lot less banning for "invalid clicks" that way. I know many publishers who did NOTHING against the TOS, and yet were still banned.