The Handy phone brand outfits 37,000 hotel rooms in Hong Kong and Singapore with low-powered devices that help navigate and inform foreign travelers for free -- they're just included in the price of your stay.
Since I can select my language and pick from any number of options (like finding food once on the other side of security), this digital information desk was more convenient for simple tasks than waiting my turn at a staffed desk.
I found global adapter outlets like this in my hotels in China, Singapore and Seoul, South Korea -- but I don't tend to see them in the US or Europe, and that's too bad. They were extremely convenient, though I would keep an eye on devices overheating -- they may not all convert electricity equally well.
Affixed to almost every table in South Korea is a button to summon your waitstaff, for instance when you want to order, need more tea, or think it's time to collect the bill. Some even have a dedicated beer-reorder button!
I love these simply because I get impatient trying to flag waitstaff down, first with my eyes and later with waving hands. I've seen a few of these in Korean restaurants in the US, but I think they'd be useful everywhere.