Joe Belfiore: Windows Phone 8.1 developer preview is coming next week
Today, Joe Belfiore took to Twitter again to let users know that the WP 8.1 developer preview is coming “early next week.” This probably means that the rumored April 14 launch date is accurate after all. So, anyone having a Windows Phone 8 handset will likely be able to update it to WP 8.1 come Monday, or Tuesday. Although this release will be aimed at developers, it can be downloaded and installed by all users.
Officially
unveiled on April 2, Windows Phone 8.1 comes with important novelties and improvements, including Cortana (Microsoft's digital personal assistant), UI redesigns, Action Center, dual SIM support, Internet Explorer 11, and more.
source: Twitter
Things that are NOT allowed: