Personally, I believe the proper verdict was handed down, according to the piece of law that was in front of the jury. The thing is, what this case represented to the jury and what this case represented to the masses are two entirely different things.
Also, "not guilty" is a far cry from "innocent." I believe George Zimmerman was an idiot for doing what he did that night; unfortunately (most of the time), however, it is impossible to convict someone of felony stupid. What the jury found was that, according to the self-defense laws of the state of Florida, he was not guilty of murder.
Those looking for justice for Trayvon Martin will not find it in this trial; the law and justice are two different things here. Maybe a civil suit for wrongful death?