The title pretty well sums it up. I just uploaded the current build of Retrobooster to IGF. The last few weeks have been a good exercise in refinement, trying to fix up a lot of little details that have been on my to-do list for a long time.
I was hoping to also submit Retrobooster to IGC, but I expected to see a submissions announcement from them a long time ago. It looks more and more like they will not be holding a competition for 2013.
The next big milestone is to release a beta playable demo so the world can get a sample of what Retrobooster is like. That should probably be accompanied by a decent trailer and an announcement to the press, so I have my work cut out for me.