From Microsoft no less? When will MS Outlook prevent spammers putting meetings directly on my calendar? Even as "tentative" that's unacceptable and a DDOS waiting to happen. Isn't this an an indicator of how well they'd resist VR/AR attacks?

iPad 1 original had cheap adapters available for both SD and USB, which got less and less functional with every update, eventually not working at all. IMO it's concrete proof of Apple "making things worse on purpose" Still love my iPad Air 2 for anything not involving productivity, so yes, toy apps

To the OP. Yes, of course Facebook can run experiments ethically, they're doing it all the time. All corporations do - "which color packaging on our box of soap sells more"? Count sales, over, done, next. They're a corporation, which is a legal entity, so their studies need to be legal, or some government will make it impossible for them to do business. Can they run experiments "like these" ethically - probably, but defining "ethics" is a lot harder - call the philosophers! According to the ultimate benchmark, Wikipedia, "Ethics, sometimes known as moral philosophy, is a branch of philosophy...". Facebook's ethics, come from their management and shareholders. If a study is against the law, see above, if goes against their users' wishes, they can just not come back.

My wife used her Samsung Epic side-slider for phone and hotspotting for her 1-person business office, and loved it. When it started having problems, Sprint talked her into an iPhone5. It didn't work well enough for hotspotting in our (fringe) area, silently losing internet connections frequently. Replacement iphone had the same response. When she tried to replace it with an S4 she was told "only after they received iphone at the warehouse by mail and contacted her". Her response - "You want me to give up my business phone for at least a week and wait for your call?". Them, "It's policy". Her: "Wow Verizon S4 is awesome, it is more expensive but LTE is really fast." Bottom line: For want of a single "upgrade eligible" flag in their database, Sprint lost a 15-year $110/month customer.

As a matter of fact, that's pretty much my next project, although I'm thinking it'll be wireless, and hopefully able to send its contents somewhere automatically. Add standard crypto, and the off switch will instantly securely lock the contents. This summer you'll likely start seeing multiple RPi options for early adopters - a little longer for your local auto parts store - dashcams aren't nearly as popular in the US today as they will be at some point in the future.