Dr Raymond Soneira of DisplayMate Technologies has made it his mission to suss out the best smartphone, tablet, HDTV and multimedia displays from the worst with his Display Technology Shoot-Out series. Here, he tackles the differences between iPad 2 and iPhone 4 screens.
From the same site that scared us witless with visualisations of just how large the BP oil spill really is, comes the country comparison tool. Choose two countries – say, the US and Germany, and see all sorts of differences.
Android/iOS: OnTheFly is a speedy airfare search engine designed to help you drill down through thousands of airfare listings from the comfort of your smart phone.