Sorry guys, the game-start notification is sent when we receive a game-status update indicating the game has started. Sometimes games start late and sometimes games start on time but we don't get feed for a few minutes after the game has started.
Might be able to do something to send an alert at the time the game is "supposed to start" regardless of whether or not we've received an update. But that could be quirky... You'd get a gamestart notification but the game would still say, pre-game.
FYI - Planning a push soon. Purely cosmetic but I think you'll like it. It's a restyle for the game details for most of the leagues. Style follows what you've seen for NFL, plus some other bits... You can thank the Widget-Guy for the styling update.
Facebook support should be coming out in the following release, I'm working on that now.
Release is planned for this week, keep an eye out!