Could it be an Asian tiger of the middle east? Will the American polices be justified if Iraq is a success? If the answer to that question is yes, then do the current people who oppose Bush's polices have a vested interest in seeing Iraq fail?
Iraq will only be moderately successful in the next 20 to 30 years, but after that is where the real economic progress is going to happen. This current generation can only lay the foundation for their children: elections, respect for people of different faith, respect for the law, and respect of others. While that foundation is being built, the cultural wounds that have been created by Saddam and the US can heal. You can look at the history of America and see countries putting away former disagreements: Mexico (that whole Alamo thing had them pissed off for awhile), Japan (we beat them in WW2 and they are a good friend now).
If Iraq is successful in morphing capitalism to it's culture, it can act as an ambassador to the Arab world. If will need to straddle the divide between the capitalist culture of America and the Arab culture it is in the middle of.