Asus must spend a lot of money on launch events. It already has its third Padfone, the Infinity, out and now a teaser video has appeared for its fourth. We should find out more on 17 September. 

And since Asus spends so much time launching thingsm it's managed to come up with this ingenious video that shows the phone launching out of the pad part of its Padfone.

Let's hope the announced product has been given some deeper thought than this.