I just installed this on a Win 7 virtual machine. It appears to work fairly well (so far I've only used it to preview a mobile site under development).
I've got a user-agent spoofer and window resizer in Firefox, but this thing seems to give a more reliable and convenient solution. My only wish is that the window could be scaled to a something closer to the physical device dimensions.
Is it as good as it looks? I've just bought Rogue Legacy after seeing it livestreamed and with how little money I have I don't really want to buy another game already, but I'm now in the same position with Cube World where I'm seeing it and I want to play it. :[
I just played a bit of Rogue Legacy (pirated, skint). S'good innit? Loads of charm. I absolutely lick balls at that kind of platforming though.
Cube World... isn't currently for sale anyway so pirate it and see if you like it. It's definitely got a lot of promise. It's very slick and polished. If you fancy something that's like a cross between Zelda and a hack and slash only infinite and procedural (with the downsides to that as well as the up) then, well, that's exactly what it is.