[quote=Unlit]
Did you ever see the X-men: Gifted visual novel?
[/quote]

No, but for the sake of terminology, that's a motion comic, rather than a visual novel.

[url=http://www.youtube.com/watch?v=ZFXg7Fdd8q0]This[/url] is a primary example of a visual novel. And in fact the one I was reading a couple of days ago.