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While Hatsune Miku and the Future Stars: Project Mirai is not due for release until March 2012, Sega has taken the initiative to begin airing commercials for the first non-PSP version of their highly successful Hatsune Miku game series. Unfortunately throughout the 15 seconds there are only a few looks at the gameplay… but it is creative and colourful if that is worth something!
There’s an article here which I think may interest you: http://www.mangauk.com/?p=rock-on
It’s about the connection between music and cartoons and mentions Hatsume Miku!