Sony is easing up on its PlayStation Network (PSN) login requirement for PC games, a decision that’s sure to please many players. After facing backlash last year over its implementation of mandatory PSN logins for certain PC titles, Sony has announced that it will now make logging into PSN optional for its most popular single-player games. Starting with Marvel’s Spider-Man 2, which releases tomorrow, players will no longer be required to sign into a PlayStation account to play certain PlayStatio...