Microsoft, today published Windows 10 for phone which now supports many more phones excluding Lumia 930, while some users are still unable to download the update due to server issues Microsoft is experiencing right now but those on 'Insider fast' mode can download the update. We have installed the latest build on Lumia 720 but we're still exploring the features. while you're still waiting for the build to install check out some of the screenshots below.
Action Center
File Manager
Calculator
Messaging
Project Spartan
Action Center
File Manager
Calculator
Messaging
Project Spartan