Haiti is about the size of Maryland and a big chunk of the population lives in or near Port-Au-Prince, maybe a third of the total, depending on what you count as a suburb. So the collapse of Port-Au-Prince is a big, big deal for the country as a whole. It's a dominant city for Haiti. Plus Jacmel seems to be leveled. From the reports I have seen, my tentative conclusion is that the country as a whole is currently below the subsistence level and will remain so for the foreseeable future. Hundreds of thousands of people have died, the U.N. Mission has collapsed, the government is not working (was it ever?), and hundreds of thousands or maybe millions of people are living in the streets without reliable food or water supplies. The hospitals and schools have collapsed. The airport is shut down. The port is very badly damaged. The Haitian Penitentiary has collapsed and the inmates -- tough guys most of them -- are running free for the foreseeable future. There is no viable police force or army.
In other words, it's not just a matter of offering extra food aid for two or three years.
Very rapidly, President Obama needs to come to terms with the idea that the country of Haiti, as we knew it, probably does not exist any more.