It looks like some information might have leaked out about the post-credits scene in Iron Man 3! One of the funnest parts about going to the Marvel movies is seeing these end credits sequences, and how they will lead into the future Marvel films.
This bit of information comes from a commenter on io9, so we have no confirmation on how accurate this info is, but it definitely sounds like something Marvel would do.
Here's what he said we'd see, and a theory of what it all means....
Apparently the SOS is received at the end of the movie, and is from one Star-Lord (mask and all), so Tony takes off to find him (noting that, with the space armor, he's "ready this time"). Jarvis asks Tony where he's going and Tony simply replies, "I'll be back." This heavily implies to me that Guardians of the Galaxy is probably going to take place before IM3, and will end with Starlord sending out the SOS (presumably Thanos is the source of distress and Starlord is warning them that he's heading towards Earth) and that Avengers 2 is going to begin (or at some point involve) Tony bringing back the Guardians to help with Thanos.
It's a pretty solid theory, and if this turns out to be true, it would be a pretty badass ending. Could you see this happening at the end of Iron Man 3? Are there any other theories you'd like to throw out there?! I'm all ears!