A $400 million aid package?

The White House recently announced a $400 million aid package for Gaza and the West Bank.
Upon perusing the American Consulate's website in Jerusalem, I read about other aid packages.

At the Palestine Investment Conference in Bethlehem on June 2, 2010, the United States Government, through the U.S. Agency for International Development (USAID), announced $75 million in new activities to support the Palestinian Authority’s work to improve infrastructure throughout the West Bank and Gaza.
http://jerusalem.usconsulate.gov/pr2060210.html

As part of the United States Government’s ongoing support of the Palestinian Authority’s efforts to strengthen the private sector and improve the business and investment climate, U.S Agency for International Development (USAID) Chief Operating Officer Alonzo Fulgham announced approximately $30 million in new activities aimed at enhancing the Palestinian private sector’s competitiveness.
http://jerusalem.usconsulate.gov/pr060210.html

On the Gaza E-Consulate site, (news to me that there was such a site - why don't the Americans open up an office in Gaza?), I read the following:
“Basma” (Smile), a Gazan cultural arts organization, held its first performance of John Steinbeck’s classic story “The Pearl” on May 12 in Gaza. With a $20,000 grant from the Consulate General’s Public Affairs office...
http://gaza.usvpp.gov/pe051210.html

I have one small question for President Obama. Does the $400 million aid package include the previous pledges, or are the Palestinians receiving a bit more than $500 million?