Microsoft has just started rolling out GDR2 update to selected windows phones out there. Yesterday, we confirmed that MS was indeed working on a GDR3 update that will bring more significant features to the platform. Today, we have some information, thanks to reddit.
First, there is Orientation Lock which will lock the orientation.
Second is Driver Mode, which can be set to automatically turn on when you connect your windows phone via Bluetooth to your car system. It can be set to automatically reject phone calls / SMSes.
Third is ability to have three medium sized tiles in a row. This will be available only in phones with full HD resolution.
Fourth and fifth, you already know – full HD resolution and quad core CPU support.