There is an independent team working on the key bindings from everything else, confirmed by Travis. It's been 8+ months since the December delay and there are no custom key bindings yet.
What the...
Custom keybinds and all the required UI for that is a job for two guys, a gfx designer and a dev. Since they most likely have the UI theming done anyway, the required people count is one (1).
I'll admit that the UI system in CryEngine is a bit hamfisted. However, assuming zero Cryengine knowledge, it should take you at most two weeks to get to the point where you can get up to speed with the Flash UI and Flowgraph stuff. The job itself... well let's give it another two weeks, for generousity.
If this takes more than one guy working one month (again, assuming no prior CryEngine know-how)... then that's incompetence, bad project management ("let's do this other stuff first"), or both.
Now, I can just smell the incoming "how would you know" responses. I respectfully assert that people who disagree simply don't know what they're talking about.
Oh its not just going to be ship sales. As soon as the FPS module comes out we will have guns to buy as well.
edit: Heck I am betting CIG will sell GOLD ammo for the luxury crowd.
If they do that, SC will be dead within a few months. I seriously doubt it. Besides, the game is supposed to be moddable. That pretty much excludes the possibility to sell people ammo and guns, because they can just mod around those restrictions.