Bought the ChromeCast on Black Friday. The point was to test EMS’s official overseas forwarding service. Turns out that forwarder is deeply unreliable — this $19 thing from Amazon US took a month to reach me, and it went missing a couple of times along the way. Anyway, it arrived. A lot of people probably want to know what this thing is good for, and how it can still be used in China in 2015. So let me run through it briefly.