Gamers trying to stick it to GameStop might be frequest customers on Amazon.com and already quite familiar with their wide inventory of games, both boxed and digital.  Well, get your credit card / checking account ready because that inventory just got fatter.

Sony and Amazon.com have launched the new PlayStation Network store to the online retailer, found at amazon.com/playstationnetwork.  Right now, there are 200 PlayStation games and related content available, both new releases and classic titles; more will be added in the coming months.

If you've bought Xbox LIVE Arcade download codes from Amazon.com before, then this isn't terribly new.  For the rest of you, the PSN codes appear right after purchase, which you can have emailed to yourself or sent as a gift.  And don't worry -- the codes are stored for retrieval at any time.