Lack of progress in the peace negotiation btw the Palestinians and Israel is pushing the rest of the Arab world closer to Iran. Arab leaders don't have much of a choice. The Arab street is already there. More of settlement building announcement and more of the Iranian president speeches against the Israel, both are the fuel to the Middleeast fire.
Police arrest 18-year-old Palestinian suspected in Old City stabbing (Haaretz)
from the article: Arab League chief pushes for closer ties with Iran