gistfile1.m

// some credits go to http://www.mikeash.com/pyblog/friday-qa-2009-08-14-practical-blocks.html
typedef void (^BasicBlock)(void);

void RunAfterDelay(NSTimeInterval delay, BasicBlock block) {
  [[[block copy] autorelease] performSelector:@selector(ps_callBlock) withObject:nil afterDelay:delay];
}

@implementation NSObject (BlocksAdditions)

- (void)ps_callBlock {
  void (^block)(void) = (id)self;
  block();
}

@end