JBean is right 100%.
First, Leonard is NOT the bail bondsman. He really can't decide to revoke or not because that is ultimately up to his nephew, Tony, who IS a bail bondsman.
Second, Tony has explained many times what bail is and is not. The U.S. Constitution guarantees every citizen the right to be free from excessive bail. Law enforcement can't play games with the bonding process - i.e. set bond so high that the defendant can't possibly pay it, just to keep the defendant in jail while they look for evidence, ect. That's not how our system works. If law enforcement only has evidence to charge the defendant with child neglect and lying - the bail should reflect the Court's worry about those crimes - not the worry about murder, because she hasn't been charged with murder...yet.
She will have additional bond set if/when she is charged with additional crimes.
I think Tony Padilla is a man of integrity and has posted bond because EVEN Casey Anthony is entitled to it by law. Even if she appears to be guilty of a more serious crime, he has committed to the bail for the lesser crimes and he is going to stand by his original commitment until something changes.
He is guaranteeing that she will appear at her court dates - that's all. Since the community appears to be gathering a lynch mob, he feels that he must keep her safe and that is what his goal is. It's not about whether he thinks she innocent or guilty so get off his back about him being a bad or stupid guy. He's neither. He's defending our Constitution and for that, I consider him a hero.