According to a snapshot of a coupon book from Costco, there will be plenty of discounts coming your way between May 12 and June 5, ranging from $30 and going up to $250 off certain smartphones.

AT&T and Samsung have announced the Infuse 4G at yesterday’s event and the Android smartphone will be available on May 15, for about $200 on-contract. You’ll get $30 off the subsidized retail price at Costco for features like 1.2GHz Hummingbird CPU, 4.5-inch Super AMOLED Plus screen, 8.9 millimeters thickness and 4G capability.

The same way you’ll get up to $150 off of Verizon’s Motorola DROID 2 and up to $250 off of the T-Mobile’s LG G2x. The offer is valid between May 12 and June 5 but given the Infuse 4G will land on May 15, that date will apply to the Samsung smartphone.

Source: PhanDroid