By the time you wake up tomorrow, Modern Warfare 3's spawn system will be updated, improving "when, where," and "how" you spawn, Infinity Ward's Robert Bowling tweeted. He also bids farewell to revenge spawns, though I don't know if there will be a going away party for that. There should. Revenge spawns suck.
The update is set to go live 2 a.m. PST tonight, so only the committed will notice the changes as they occur.