Pew Global Opinion Trends 2002-2007, 24 Jul 07: A Rising Tide Lifts Mood in the Developing World
47 Nation Pew Global Attitudes Survey

It is a global survey, but the bit that relates to the topic of this thread is that the survey reflects a Sharp Decline in Support for Suicide Bombing in Muslim Countries
....Among the most striking trends in predominantly Muslim nations is the continuing decline in the number saying that suicide bombing and other forms of violence against civilians are justifiable in the defense of Islam. In Lebanon, Bangladesh, Pakistan and Indonesia, the proportion of Muslims who view suicide bombing and other attacks against civilians as being often or sometimes justified has declined by half or more over the past five years.

Wide majorities say such attacks are, at most, rarely acceptable. However, this is decidedly not the case in the Palestinian territories. Fully 70% of Palestinians believe that suicide bombings against civilians can be often or sometimes justified, a position starkly at odds with Muslims in other Middle Eastern, Asian, and African nations.

The decreasing acceptance of extremism among Muslims also is reflected in declining support for Osama bin Laden. Since 2003, Muslim confidence in bin Laden to do the right thing in world affairs has fallen; in Jordan, just 20% express a lot or some confidence in bin Laden, down from 56% four years ago. Yet confidence in bin Laden in the Palestinian territories, while lower than it was in 2003, remains relatively high (57%)......
The section of the report on the Middle East and the Muslim world begins on page 59 of the pdf.