According to this article, some elements of Arab leadership (notably Sari Nusseibeh and Hosni Mubarak) are trying to encourage expressions of moderation by Palestinians in the belief that this can help Mitzna and the Israeli left in the upcoming election (this would be true if Palestinian moderates had any credibility remaining with the Israeli public).

But, relying on a twisted logic that the sympathetic article doesn't really succeed in understanding, most Palestinians actually prefer a right-wing Israeli gov't. For them, when an Israeli government declares its goal to be suppressing attacks on its civilians, each terror attack is a victory and source of national pride.