The summit is about peace between Palestine and Israel. Its about peace between Israelis and the Palestinians who weren't arab originally. And yes many thanks to USA, Britian, EU, Russia, those are the only countries who care about bring peace in Israel and Palestine. The rest of arab countries still don't see peace as a top priority for the region.
Report: Czech Republic will stop detaining Syrians on way to Germany (Reuters)
from the article: PA: Police deployed in Nablus before receiving Israeli okay