The
Palm
Civet

a status bar overlay for iphone and ipad apps that supports touch-handling, message queuing, and animations. implementation is about as it gets for objective c =>

MTStatusBarOverlay *overlay = [MTStatusBarOverlay sharedInstance];
overlay.animation = MTStatusBarOverlayAnimationFallDown;  
overlay.detailViewMode = MTDetailViewModeHistory;
overlay.delegate = self;
[overlay postMessage:@"Following @myell0w on Twitter…"];
// ...
[overlay postMessage:@"Following myell0w on Github…" animated:NO];
// ...
[overlay postImmediateFinishMessage:@"Following was a good idea!"
  duration:2.0 animated:YES];