Do I agree with the verdit? Absolutely. As Nate said, the prosecution did not do a close enough job to prove anything and unfortunately Trayvon was not there to plead his case.
Do I agree with Zimmerman's actions? Absolutely not. From my own personal judgement and beliefs, regardless of what really happened and who instigated what, Zimmerman was NOT a police officer and should not have tried to act like one. It's very rare when vigilante justice doesn't hurt or murder someone, in my experience.