Update, I received info from my dealer today:

"As of June 30, 2008, Ford Motor Company has 55,990 Hybrid Vehicles (in the tax credit window)(Escape and Mariner Hybrids). Based on Sales patterns, it appears the 60,000 unit threshold will be reached within the 3rd Quarter of 2008. If this is the case, purchasers of an Escape Hybrid would be eiligible for the full tax credit until December 31, 2008."