This is pretty cool if you are a web designer (or have a website and pretend to be one like I do). Basically the folks over at Google Earth did some analysis of screen size to determine why people were not clicking on the ‘Download & Agree’ button. (You can get full details here.) Then came up with a tool that you can enter the URL of your website into and see it with data about the percentage of users that can see the content overlaid on top.
Based on this the home page of my personal site can be viewed entirely by 90% of people online. The full width with all the navigation can also be viewed by this same 90%. As for this blog, 98% of people can see the full page width without scrolling, and see the title of the first post. Guess a design with a narrow column has it’s advantages.
I guess seeing how many things charge with USB now something like this could be useful. Though I have to wonder how much power this wastes having the power inverter always connected; presumably using a small amount of power.
[edit] Upon second reading the page claims they do not draw any power unless a device is connected, but who knows for sure.