Obama supports Israel as a Jewish state. The Palestinians including Hamas will take a state on the West Bank but don't want to accept Israel as a state with a Jewish majority. After a period of quiet, the rest of Israel would be the Palestinian goal. Fayyad played into this wish by offering to build Palestinians a state in 2 years without having to accept Israel. Instead of the 3 no's of Khartoum the Arabs decided it's better to play the West for suckers and are disappointed that Obama who showed such promise is not cooperating enough.
Brazilian head of UN peacekeeping force in Haiti dies of heart attack (Reuters)
from the article: Fatah memo: We lost hope in Obama for caving to Zionist pressure