Helpful PCH Macros.

gistfile1.txt

#define screenHeight()      ([UIScreen mainScreen].bounds.size.height)

#define isPhoneFive()       (screenHeight() == 568)

#define isOS6()             ([[[UIDevice currentDevice] systemVersion]intValue] > 5.2)

#define UIInterfaceIdiomIsPad() (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

#define UIColorFromRGB(rgbValue) [UIColor \
colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \
green:((float)((rgbValue & 0xFF00) >> 8))/255.0 \
blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]