Notes on objective-c 2.0

- NSLog - useful log to stdout, part of Foundation classes
- Don't forget to prefix your NSString literals with @. Otherwise you'll get a seg fault
- Use alloc and init in two separate actions instead of new so you are aware two separate actions are ocurring. [[Klass alloc] init]
- name instance variables and getters the same.
- prefix setters with set
- camelCase seems to be the default

data types

- %x - hex
- %o - octal
- %g floats in scientiffic notation 1.7e4 == 1.7E4

- %p id data type - store an object of any type