I read the opinion and there are several, interesting points to this decision:
1. There is an individual right, not a collective right. And, this right is not formed by the U.S. Constitution, but is a recognition of a pre-existing right! Justice Scalia takes great pains to go back into English history to show this pre-existing right and how this English right was incorporated into the American constitution.
2. That the right is seperate from militia service. In fact, Scalia points out that the 'militia' referred to was the entire body of citizens, from which Congress could pull, equip and train. This seperation of an individual right that exists apart from militia service is a huge win for those of us who believe in gun rights.
3. The level of scrutiny is 'NONE'! The 2nd Amendment cannot be declared extinct through the use of a level of review. The founders/framers did the balancing act when they drafted the amendment. The amendment right is always going to exist and is ITSELF the standard against which a decision must be made. Courts must rely on the balancing act of the framers and not on some current standard.
4. I find it interesting how, as he has done in the past, Justice Scalia repeatedly punctures the dissenting justices arguments using their own words in past decisions. He really tears up Justice Ginsburgs arguments in the dissenting opinion by pointing to past opinions in which she held to a different defintion for 'to keep and bear arms'. By doing this, Scalia has laid down a gauntlet for any future court that wants to rely on one of the two dissenting opinions to show the logic or consistency of those arguments.
5. Finally, Scalia really does a good job of showing how consistent 2nd amendment cases were up until just recently. The decision shows that stare decisis was used to build upon the original intent of the framers, and that there was a coherent body of case law that had the understanding of an individual right. This signals the understanding that the court is not going off on a new direction, but is correcting the abuses of the last forty or fifty years. Again, it's a challenge to any future court that wants to rely on the dissents to prove this viewpoint wrong.
This is a huge win, and it will now lead to lots of new litigation but the difference is that now the litigation will be carried out with the proviso that an individual right is enshrined (protected, but not created) in the constitution, and it is seperate from military service. You cannot get rid of the right by getting rid of the constitution, which has big implications for situations such as the gun grabs of hurricane Katrina.
Pay attention to these two sentences: 'But the enshrinement of certain constitutional rights necessarily takes certain policy choices off the table'. And 'these include the absolute prohibition of handguns held and used for self-defense in the home.'
Notice that although handgun prohibitions are mentioned, the verbiage is 'these include', not 'these are limited too'. Lots more litigation coming up, but we have at least one protected area enshrined within the 2nd amendment.