Hamas and Islamic Jihad denounced his speech.
Hamas spokesman Fawzi Barhoum accused him of "unilateral moves" by acting without consulting Palestine's legitimate government and other factions.
Islamic Jihad spokesman Daoud Shihab said his objective is reopening negotiations with Israel, not independence and UN membership.
He added that Abbas should focus on implementing his May unity government agreement, now sidetracked at Washington and Israel's behest. They, in fact, want Hamas isolated, not allied with Fatah to serve all Palestinians.
Reuters said Quartet members will meet in New York on September 18 in a last-ditch effort to derail a showdown over Palestinian statehood and UN membership.
They want resumption of bilateral Israeli/Palestinian negotiations going nowhere and won't now. At issue is preventing Abbas from petitioning the UN, no matter how little he'll settle for.
In a word, they want Palestinians subjugated under permanent occupation with no rights. Obama and Netanyahu call it "peace."
Others call it bondage. Abbas calls it the best he can get.