Geoff Johns and Matt Fraction, the writers of Green Lantern and Iron Man, respectively, recently exchanged a couple of tweets......

http://blog.newsarama.com/2010/06/08...man-crossover/

I am not a big Johns fan these days, but I have to say the possibility of this sounds earth-shatteringly good.

As cool as it was reading their thoughts, I think that is all that it is FOR NOW...just thoughts.
That's not to say that something couldn't bloom from this, I am very excited over the fact that they were just throwing out a few ideas about a crossover.
It's one of the few I have always wanted to read!

For the moment, it sounds like just a joke, but I'd be lying if I said I don't hope that joke turns into something real. If it was anything like what they're describing, I know I'd buy it for sure.