Multi-Resolution Device

I can't post SDK 3.2-specific code because it's under NDA, but I can post SDK 3.1 code. Now, let's say you wanted your application to be future-proofed to run properly in full-screen on some theoretical new device with more pixels than an iPhone. You might do something like this:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    UIScreen *screen = [UIScreen mainScreen];
    [window setFrame:[screen applicationFrame]];
    return YES;
}

This assumes that your nib is set up using autosize attributes to properly scale. If you need separate nibs, that's another blog posting that'll come after the NDA is lifted.