To those of you wondering why you don't see the game yet: They've only submitted the final product to Steam. It still takes time for Steam to publish the game to their store. Once they do that it will show up in your inventory. However you still won't be able to play it for a week or two (It'll be the same as a pre-order) since Steam still needs to verify the game. It will be playable within the next two weeks, just not yet.

I'm willing to bet that if GTA V had the same team that Identity does it would have taken much longer than 5 years to develop. This is a massively ambitious project. I'm sure that if the game is a hit they'll be able to make enough money to hire more developers, which will significantly decrease the time until remaining modules and updates are released. That's how these things work. It's probably more annoying to see constant bitching than it is to have no progress updates.