This coupon is good on the ThinkPad X200 ultraportable laptop as well as the ThinkPad T400 laptop. With the coupon, savings can go up to $455 (on the ThinkPad X200 tablet or the X200 ultraportable) and is even usable on the SL500 laptop. There doesn't seem to be any real restriction on it except that the 25% off kicks in when you purchase a laptop for $1499 or more. Again, this stackable eCoupon expires tonight folks. Use eCoupon: CAP4DAYSALE (expires 9/27/09) 15-25% OFF THINKPAD LAPTOP STACKABLE ECOUPON