I thought it was a terrific movie. It really had pace, and rhythm and action, and it had to be done with a younger cast. All of that running in the corridor, I can't imagine Bill Shatner running.
Leonard (Nimoy) made a cameo in the first one, and I thought they would include the still-living one of us in the subsequent ones, but I think they made a policy decision they're going to try to get away from that confusion, and the story track of bringing an old ancient Spock back.
So they don't have any cameos for any of us in the next one, and from what I understand, should there be another J.J. Abrams Star Trek movie (beyond the one currently being filmed), it will be without any of us.
Full article here: http://blastr.com/2012/04/george-takei-all-the-next.php