This was never a condition before. And in any event, Israel stopped buildind for 10 months. Why did it take the Palestinians 10 months to come to the negotoating table. I'll tell you why. Because Abbas and the Palestinians and the Arabs are no more interested in peace than Arafat was. All they want are concessions until they get it all.
U.S. to defend Syrian rebels with airpower, including from Assad (Reuters)
from the article: Arab League endorses Palestinian decision to halt peace talks