Just saw this on Kotaku...looks like I am the first one to post it:
http://kotaku.com/5483278/think-outside-the-bun-get-free-atari-games
It appears that Taco Bell is giving away copies of Super Breakout, Centipede, Lunar Lander and/or Asteroids with a kid meal purchase. Kotaku seems to think that the promotion has not gone wide yet.
Neat!