Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)
Boot Camp Assistant asks you on which drive you want to install Windows, and then wether you simply want a partion of that drive or format the whole drive for Windows.