This is a repost of dcyahoo's message on FW. See also attached the attached image for detailes (Thanks Cossack for posting the image on FW):
"""
Citi has this new Diamond Reward AMEX offer:
5 TY point for $1 spent on supermarket, gas station, etc for 1st 12 month.
No fee BT until 12/01/07
10000 TY points after 1st purchase,
signup code F1M3
or call 800-601-8595
"""
You can apply online at citi.bridgetrack.com/usc/06/cvg/amex/DTW/default.htm
although I have not noticed any info about the 10,000 points on the online form after I entered the code.
You can exchange 10,000 points for a $100 gift card for most major US stores (Best Buy, Sears, Staples, Home Depot, etc) via ThankYou Network
Source: fatwallet.com/t/52/668759/