Since being announced at this year’s BUILD developers’ conference, the tech world has remained fascinated by Microsoft’s Windows Phone 8.1. Given that Cortana, the company’s first mobile voice assistant, has commanded the lion’s share of attention since rolling out with WP8.1, it shouldn’t come as much of a shock that in today’s update to the mobile software, it’s once again the center of attention. As well as offering some improvements to the current Cortana set-up, the feature is now rolling out across several new markets as a result of the bump, and with a number of general tweaks to Windows Phone 8.1 across the board, this is a pretty significant enhancement.