American Express is offering a special bonus of 90,000 Hilton Honors points on the Amex HHonors Surpass card. The normal bonus offer on the card is 50,000 Honors points. The 90,000 bonus points could be worth up to 3 or 4 nights free stay at some Hilton hotels. The Hilton brand of hotels includes Hampton Inn, DoubleTree, Homewood Suites... This special offer is for a limited time.