or do you mean the game stopped
completely after that lunch order was goofed?
I did another real quick test and tried to repeat the exact problem and couldn't get it again. Might have been a fluke, or might have been that I just woke up when I tried it =P
Though, is there something I can do to ensure the fastest possible downloads?
There is, but it's not really worth it unless your download is 50mb+, and being streamed to a large (and i mean really large) population from many different locations around the world.
In case of this, you would upload your app to mirrors located all over the world (sourceforge does this I believe), and/or central located servers.
New york and chicago are great locations for hosting for samples in all of america. I think you're fine though.
On a more related note for the game:
I think the minigame has a lot more potential, not by itself, but for a larger project.
Maybe this part of the game is 'working', and you get paid after the day is over or something. You would ofcourse need to add shops, more mini-games, etc to that idea. Just a thought to make it worth more for the effort put into it.
Time