I like the idea of second chances, benefit of the doubt and understanding, forgiveness, so on and so forth and I like the idea that they should be earned even more.
When Vick was being accused of his crimes, and even after he was indicted, he kept claiming he was innocent. It was only when it became clear he would never win a trial and that he would serve less time in jail did he finally say he was guilty. I never got the impression that he was actually sorry or even understood how bad his crimes really were.
None the less I'm sure he'll get his chance to play.