Sky News - What do they do on those PC's?!

Right, I've been watching Boulton and Co. a few times, and noticed that the presenters keep smashing their computer tablet literally after every word. Does anyone know what they seem to be doing? It doesn't seem to do anything that I can see. And do they use their own specially made software on those HP Tablets for the news wires?

I wasn't sure on where to post but I'm sure the admins will move it to where necessary

Many thanks

Can't speak for sure, but I imagine it has a copy of the running order and the autocue. I've also seen the presenters use iPad's to control the graphics, for example whoever is presenting press preview uses it to change the front page on the screen.