Windows 10

[SVK]

So now Windows Mobile have apps count Android + Apple
I doubt about app experience though.

 

[itzmynet]

they didn't say android & ios apps will run directly on windows 10. it will be up to the developers to port their android /ios apps to windows 10, which microsoft has made it easy to do now.

 

[Sushubh]

one thing to mention here. google has already made it extremely easy to run android apps on windows (and other platforms too) through chrome.

 

[SVK]

W10P may support split screen as per screenshots leaked -

 

[SVK]

More buttons in Notification and responding from notification.
Also Live tiles could be interactive like toggling action by touching tiles.

 

[SVK]

Continuum for phones: Hands-on Demo video

 

[Sushubh]

Source

 

[SVK]

Windows 10 for Phones : Built-in PDF print support. Demo video.

 

[SVK]

Windows 10 Phones: USB OTG, Arduino, 4-column start screen & other UI changes

A new development Phablet (that may or may not come to market).
USB Flash drive support (OTG). You can now extend you storage with a USB flash drive. The video says it is limited to devices with USB dual-role hardware support, like the prototype in the image above.
A new Windows 10 for Phones build with UI changes: 4-column start screen and all apps before the bottom arrow (just like GDR2).
If you have a look at the below screenshot you can see changes in the “File explorer” with the upcoming build.
Arduino support via new USB capabilties

 

[SVK]

Windows 10 for Phones Call, Phone app, Contact & Call history UI changes

I liked full screen caller image as it is currently implemented.