I just got hold of official Diablo III installer downloader (EU client)

Friend sent me a link which he used to download the downloader and it works for me also.
I have used the link -> downlaoded the downlaoder -> now I'm downloading the client.

I have seen no EULA, agreed to nothing. So as far as law in my counry goes - I'm 100% legal.

BTW the dowloader is disguised torrent client