LAUNCH MAIL AND SEND AN EMAIL
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"mailto://mymail@myserver.com"]];
PREVENT SLEEP MODE
[UIApplication sharedApplication].idleTimerDisabled = YES;
STOP RESPONDING TO TOUCHES
[[UIApplication sharedApplication] beginIgnoringInteractionEvents];
RESUME RESPONDING TO TOUCHES
[[UIApplication sharedApplication] endIgnoringInteractionEvents];
DISPLAY AN ALERT WINDOW
UIAlertView* alert = [[[UIAlertView alloc] initWithTitle:@"Warning" message:@"too many alerts" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil] autorelease];
[alert show]
