That’s right. Michael Keaton will be voicing a Ken Doll in the upcoming Toy Story 3. IMDB had this to say:

Batman actor Michael Keaton will star in the forthcoming Toy Story movie.

Keaton will voice Barbie’s boyfriend Ken in the animated Disney film, which is slated for release in 2010.

A source tells Britain’s Daily Star newspaper, “There’s an embrace (between Barbie and Ken) but not kissing. Toy executives want to keep Barbie’s squeaky clean image.”