Ah shit you got me i got the words swapped. I meant the summit being the last attempt of a treaty that Arafat didnt even bother trying to negotiate. What i was trying to say was there was an attempt for land swaps and a passage way for peace but the PLO captain shat his pants and decided he wants murder on his hands. Oslo II might have been the last official treaty but there have been attempts to get peace and a 2 state solution since then.
The only reason Egypt even has the Sinai back is because Israel offered it back as a sign of peace after it was captured. Palestinians have nothing to offer. Not even the Egyptians want them back in the Sinai now.