WindsOfChange has a interesting article titled "HAMASTAN"

The main points are that the EU and US will deny funding to the Palestinian Government, that will cause a cash shortfall, and the Government will now get its funding from less 'desireable' means (i.e. Radical places like Iran and Saudi Arabia)

While true that the revenue will shrink up if the EU and the US deny funding, one thing must be considered though. Part of Hamas's political apeal was the do not have the reputation as being corrupt. If you cut down on the corruption in Government, a given amount of money will go further.

But how will those who are used to stealing money donated to the Palestinian people react to their
'gravy train' being cut off?