The package is carefully constructed so that during the freeze the only commitment from Obama is to **continue** to veto the UNSC, and to **continue** to fight the Goldstone report i.e. during that freeze Obama is committed to nothing more than the status quo. And if that 90 days passes WITHOUT a breakthrough then Obama will declare that the "peace process" is a hopeless basket case, and at that point the incentive package (with its goodies that are carried FORWARD, like those F-35s) will be taken off the table.
10 arrested at Israeli Arab protest in Ramle (Haaretz)
from the article: What exactly does Obama expect from Netanyahu?