Wikipedia seems to suggest that it’s Android and iOS only, so no luck with it on a Windows tablet. I’ve seen Bluestacks before for Android apps on Windows but I’ve never tried it myself.
John – the install button is to remotely install it on to an Android device, not on to the Windows machine.
Talking about Windows tablets, new workplace has Surface Pro’s for us all – I’m pretty impressed to be honest. The keyboard isn’t actually bad at all. And as it has a USB port, I can do silly things like this with it at home! (though in fairness, I imagine this would work with an Android tablet and OTG connector)

"Everything looks interesting until you do it. Then you find it’s just another job" - Terry Pratchett