A recent retail rumor roundup on GameSpot sees a listing for Square Enix's Project Sylpheed on GameStop. While that in itself isn't terribly shocking, the publisher and developer listed is intriguing. According to the GameStop listing, Microsoft Game Studios is the publisher and developer of the US version of Project Sylpheed (although the GameStop listing spells the title Silpheed). The game is listed for a July release with a bargain price of $39.99. Granted, product listings should never be taken as fact, but it would be significant if Microsoft reached a publishing deal with Square-Enix, especially in light of recent events.