.... What is the fall-back position if the talks fail? Is there another solution waiting in the wings? Yes, there are several of them, though none as popular right now as two states for two peoples. ... All of them have obvious flaws; some would say fatal flaws:Read this entire piece at Michael Lame's "Re-think the Middle East" weblog.
... There are at least four different models for a so-called “one-state solution” based on the establishment of a single political entity encompassing all the land between the Jordan River and the Mediterranean Sea:
1) One big Jewish State;
2) One big Arab State;
3) A federated state;
4) A bi-national state