DRY applied (Counter app)
"What is returned" > "how it's done" (i.e. [NSArray lastObject], not [NSArray countElementsAndReturnTheOneWithIndexBeingTheCountMinusOne])
The root of all evil
Ain't no java!
The dreaded modulo bias (http://stackoverflow.com/questions/10984974/why-do-people-say-there-is-modulo-bias-when-using-a-random-number-generator)
Avoid unwarranted subpixel rendering (how to see: iOS Simulator > Debug > Color Misaligned Imaged)
Shoo, magic! (a proper initialiser added)
Never executed anyways
Nice to have a single initialisation point
Merge pull request #1 from zrxq/zrxq

Nice!