It'll make the real solution far less bloody and painful to impliment - for the Arab world. The solution is an end to the Islamist dream of ruling the world under the banner of the Khalifah through basic freedoms like freedom of speech, freedom of peaceful assembly and freedom of self determination in the persuit of life, liberty and happiness.
The roadmap, when implimented, will be a light of hope for oppressed people and a continued warning to tyrants of all stripes.
For most of the West, the reality which will come to pass will be yet another painful awakening from many ingrained, cherished dreams.
Remember that even if this succeeds, there will be a few diehard bloodlusters who are afraid and unable to change and will continue to murder innocent people. They'll be easier to catch though.
The Palestinian Authority is the only entity that can root out Hamas and the other criminal killers lurking in the 'hood. The Israelis can never identify, locate and arrest or kill the bad guys. Impossible. As we Americans, in Baghdad, can never locate all the Baathist and Fedayeen scum going door to door. We need the community to point us to the right doors, and that's happening. It'll happen in the West Bank tenaments too, but it'll be PA security guys taking the garbage out. Or there's no end to the terror.