The latest word on Windows Phone 8.1 is that it will bring several enhancements to the software including the ability to support tablet screens from 7 to 10 inches. The upcoming Nokia Lumia 1520 phablet will contain the GDR3 update that allows Windows Phone 8 to support the 6 inch glass on the device. But that support ends before the screen hits tablet-sized territory which is why the Windows Phone 8.1 update is needed for larger tablet sized screens Microsoft is also looking to merge Windows Phone apps and Windows apps with a unified app store by Windows 8.1
According to Wednesday's report, Windows Phone 8.1 will scrap the back button. Apparently, studies have shown that most Windows Phone users do not use the back button to exit an app, favoring instead to use the start button to open a new app. Windows Phone 8.1 will also eliminate some of the problems the OS has with multitasking.
With the Nokia Lumia 1520 phablet due to be unveiled on October 22nd at a Nokia event in Abu Dhabi, we expect to see the GDR3 update released on or slightly before October 22nd. That update is needed so that Microsoft's mobile OS can support the 6 inch screen and the quad-core Qualcomm Snapdragon processor on the phablet.