Logitech knows a thing or two about being successful and they have injected this knowledge into their business model. They know that you have to supply a steady stream of new and innovative products to keep customers coming back. They are also well aware that you need a wide range of products, from high end gear all the way down to items that will fit any budget. It is with this mindset that Logitech released the Cordless Desktop S520 last month, the latest addition to their keyboard + mice combos that checks in at a very attractive price point.