is the launcher from the SO-04E Xperia feat Hatsune Miku, im not a vocaloid fan neither i care about vocaloid but i though the widgets and launcher were cool enough to push the apps on my C6606, unfortunately the launcher is not in English but Japanese so if you can't read it a couple of minutes playing around with the launcher will give you an idea of how it looks and what to do. if you want the apps i can tell you how to install them (it needs library files as well)
I mean it looks really cool but also seems like it requires a bit too much effort considering I'm a flash-a-holic But it definitely looks really cool!