Some people spend countless hours watching reality TV shows. Others like to collect leaves. Then there are a few who enjoy watching the washing machine go round. And lastly, there are those who play Million Tap Challenge on their iPhones. This 99 cent app has only a blank screen and one objective: Tap your screen one million times. Stupid, you say? Madness? Who is going to spend a dollar in something as absurd as this? Apparently, plenty of people. Not only that, but there's even a worldwide hi....
Gizmodo
