The iPhone app store ranges from the kinda useful to the utterly ridiculous - and here's an extreme example of the latter. The Passion application rates your sexual performance based on duration, power (as measured by the iPhone's built-in accelerometer) and loudness of orgasm, giving you a score out of 10 for your efforts. You can then compare "high scores" with other couples (or singles) around the world. That's right kids, to be the world's best lover, simply bang away like a jackhammer for 45 minutes, bellowing like a baboon. The ladies looooove that.