Have a LOT done on the back end right now. My tester app is letting my two test users log in, place bombs, disarm bombs, and the cron job is blowing bombs up. I've decided to NOT do the daily job thing - if Apple lets this thing through, I'll do it then.
I think the only big back-end pieces I have left are auto-updating HP/Stamina (e.g., user regains that to a point so I need to deal with it), correctly showing level based on exp, and dealing with leveling (how users can spend points)
I think they can spend points on Bomb Defuse Skill, Bomb Making Skill (or maybe get that from doing those), and then Stamina and HP.
I'll then start working on the iPhone part of this... which is a whole big project in and of itself (plus I'll have to learn a bunch).