This is not true. See the information at http://www.politifact.com/truth-o-meter/statements/2010/jun/10/chain-email/w-2-tax-forms-hr-3590-health-insurance-pay-taxes/
You are only partially correct.
Yes, benefits will be indicated on your W-2, but at this time, not taxed.
This can only be construed as a first step toward taxing your health care benefits at a later time. Not sure why else these evil bastards would start requiring that they be broken out on our W-2s.