Still say its a fake. Even on a small test batch there would be some organization for the least some inventory control to reduce theft. One iPhone sold before launch day would be worth a few months pay for these workers.
In a world with decent high definition for prices as low as $100 why is it a tiny, low definition video that looks like it has been recorded with a carrot? The phone is in a dark room and they make no attempt to give us an overview of the phone. If someone really did have an iPhone 5C and wanted to make a video of it working they would probably put a bit more effort in.
What I really want to know is which rumors are from Apple's marketing dept. and misinformation machine and which rumors are from other sources. We all know that many rumors are just tactics to build up hype before a product launch.
At this point in time Apple is a well established and arguably the authority in mobile devices, so whether they leak bogus information to hide the true product, build hype or both; we know this is a businesss strategy that works for them. With that said, I think the hype aspect is less relevant now a days but not in the past.