Running Android Application on Windows ?

I just found out about a month ago.. kesian aku..

The name is BlueStacks..

Now I don't have to buy mobile gadget just to run android apps... thanks to BlueStacks.. 

But of cause there is a limitation. To change a theme in Dolphin Browser, of cause I can't. How can I shake my desktop or laptop to change the theme.. ? hehee..

At least, by only using Win or Mac desktop or laptop with a minimum of 1 Gb RAM we can run any android applications.