Thanks for that posting - it was a good reminder that we have to be more cautious and less trusting when traveling. I'd like to thing everyone is as nice as my friends and I are, but they aren't. I just ordered the USB data blockers you linked in the article - I've done my best to not plug in my phone or Kindle in any public areas, but I do find that in hotel rooms the only available plug for charging is a USB (and I'm not going to mess with having an extension cord running from the bathroom electrical outlet to the bedside because that's a recipe for a very unpleasant middle of the night fall).
easy answer to this one... my old knackered windows phone (don't ask - I liked the idea of being able to dev for my phone and I don't like spending £300 on a new phone) was dying within 3 hours and I couldn't get a spare battery .
I paid £10 for a remax universal charging unit 5000mAh - it can recharge my tablet, phone and ipod a few times a day
best bit is.. i'm not allowed to connect my phone (or any other data device) to my laptop because of company policy... but I can charge my battery from my laptop and hook the phone into the other end of the battery... et voila, no data connection to my laptop
its good for 3 days of travel and is no bigger than a mini snickers bar. It pretty much lives in my coat pocket anywhere I go.