In the Washington Post today, Ruth Marcus recognizes that Bush is relying on a tax increase via the AMT to claim that he can balance the budget without raising taxes.
Looked at another way, what the Bush tax cuts give to taxpayers, the AMT grabs back. By 2012, if it isn't changed, the AMT would take back almost one-third of the Bush tax cuts...it would take back more than half of the tax cut for people making between $100,000 and $200,000.