The iPhone actually does notify you (though it's only audio and not visual) if you have a missed call, voice-mail or text. It beeps every 10 (or is it 15) minut

The iPhone actually does notify you (though it's only audio and not visual) if you have a missed call, voice-mail or text. It beeps every 10 (or is it 15) minutes. I would definitely prefer a visual notification. For that matter, how about visual notification for e-mails, tweets, etc?