Have you looked on with envy as friends with Lumia 2520 tablets use Here Maps to navigate around city streets? You won't have to for much longer. Nokia has revealed that it's bringing the mapping software to all Windows 8.1 PCs, including RT-based systems. The wider availability will come alongside a host of upgrades, too. In addition to the necessary additions of mouse and keyboard support, you'll also get a search history, higher-resolution satellite images and faster map loading. Nokia will offer the app for free, beginning with those in North America and Europe; everyone should have access within a few days.