It's more or less like the home button on an iPhone or iPad. Gestures are good, but there are scenarios where you can't easily use them or a novice user won't k

It's more or less like the home button on an iPhone or iPad. Gestures are good, but there are scenarios where you can't easily use them or a novice user won't know about them. The Start button doesn't always show up in Desktop scenarios. Also, I think you can use it to wake a device from sleep?