macbook enough for iphone app development ?

I decided to try selling few shitty apps after having seen what crap people acutally buy, tho it seems I need a macbook to make those

I don't want to buy an iphone on top of it so is the emulator thingy enough for development ?

>>16
All available on systems other than Android. Phones will certainly continue to use Android, but my prediction is as a platform it'll be splintered into incompatible manufacturer/carrier-specific islands. As a feature it'll only be of interest to neckbeards who'll think "oh golly gee I can run my free software" except you won't be able to as the carriers start mandating lock-in features.