Evelyn Gordon surveys Palestinian speeches to determine what they consider to be the accomplishments of the two-years of violence (here), and reaches the conclusion:

Israelis, Americans and Europeans have frequently found the ongoing Palestinian support for the violent conflict inexplicable. Over and over during the last two years, statesmen, journalists and ordinary people have asked the same question:

How is it that the Palestinians have failed to realize that violence undermines their cause? But if the "cause" is to hurt Israel rather than to promote the Palestinian welfare, the deep commitment to the intifada makes perfect sense.