Further to the above...
Ares:
JSF Friday Roundup .........Meanwhile, Inside Defense (cited by Bob Cox)
is reporting another change in the JSF program: the two LRIP-1 F-35As will be instrumented for tests, delivered to Edwards AFB in April 2011 and used for further testing.
Two very important points: They will be flown by USAF Test Pilot School pilots - presumably faculty, not students - rather than the JSF integrated test team. Also, until now they weren't supposed to go to Edwards at all. They were due to go to Eglin, where they would start training Marine instructors in the basics of the jet, an event that was on the critical path to Marine IOC.