Shmuel, I think the success you describe in Jenin is a thousand times more important than another summit. This is the first time that Abbas has shown himself to be seriously committed to genuine stability in a way that can result in a political entity — even a state — that could live in peace with Israel.
Why now? Probably because for the first time, his regime is under a direct threat from a Hamas overthrow. According to reports, Fatah is preparing a major anti-Hamas assault in the West Bank, which comes on the heels of Hamas’ own threatening to repeat its successes from Gaza in the rest of Palestinian territory. In other words, things have gotten so bad for him that he has realized how much he really needs Israel and the support of major powers.
Let’s hope he can stick around long enough to expand the Jenin project to the rest of the West Bank.