One thing I found annoying about JS windows 8 apps is that I couldn't force a print to default printer, you always had to go through the UI meaning the user had to select the printer etc. annoying since I was writing a visitor sign-in screen at the time so asking for printer preferences was out of the question. And that was my interaction with win 8 j's.
Cool video, I just wanna hug Larry!! Golnaz too, but for differing reasons, must be awesome wondering the vaults every now and again... employees should have to opportunity to have a supermarket sweep in there after 25 years service.