UPDATE: Our retail source has confirmed that GameStop will NOT, in fact, be taking pre-orders for PlayStation 4 starting February 21. However, details about the "First to Know" program still stand.
Original: A retail source has indicated to PSU that GameStop may start taking pre-orders for PlayStation 4 tomorrow, February 21.
The source also explained that a new "First to Know" program will begin the same day. The program will allow customers to opt-in to receive notifications – email and otherwise – whenever GameStop receives new details about things like PS4 and various games.
Stay glued to PSU.com for more on this story, and check out the massive collection of PS4 articles now available on the PSU homepage.