If only I would know...

but you might ask people over at
iPhone Dev SDK Forum - Powered by vBulletin
by the way, just in case if you have an iphone programmer on hand, let me know.
ADDED: well, the only think we neglected in out game was marketing, we had just send out our
PR and promo codes to some review sites. So if you opt for developing your app, marketing should also be considered very seriously.
And one more think, appstore has a minimum payout of 150$ per country! therefor even if you'll make a thousand or so in total sales around the word, but less then 150$ in any particular country, you still won't get any money.