Yeah, This is a Vote of Confidence in the JSF

The US Marines have decided to buy Harriers from the UK to extend the life of their fleet:

Britain has agreed to sell all of its 74 decommissioned Harrier jump jets, along with engines and spare parts, to the U.S. Navy and Marine Corps - a move expected to help the Marines operate Harriers into the mid-2020s and provide extra planes to replace aging two-seat F-18D Hornet strike fighters.

Rear Adm. Mark Heinrich, chief of the U.S. Navy's Supply Corps, confirmed the two-part deal Nov. 10 during a conference in New York sponsored by Bank of America Merrill Lynch in association with Defense News.

Heinrich negotiated the $50 million purchase of all Harrier spare parts, while Rear Adm. Donald Gaddis, the U.S. Navy's program executive officer for tactical aircraft, is overseeing discussions to buy the Harrier aircraft and their Rolls-Royce engines, Heinrich said.

The US Marine Corps does not seem to be completely sanguine about Lockheed-Martin meeting schedule, even the new schedule which slides IOC another 2 years to the right.