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 ?

Android will peter out because Google are basically letting the telcos fuck them up the ass for popularity, while the telcos are desperate to suck Steve Jobs' dick. It'll become the Linux of smartphones, some shitty "free" clones of commercial applications from other OSes that no-one but RiMjobS Stallman will give a shit about.