Microsoft has released Windows 10 Technical Preview for phones.
What’s new in the first Windows 10 Technical Preview for phones:
Full-size Background Image for Start.
More Quick Actions in Action Center (up to three rows).
Enhanced speech-to-text capability.
More powerful Photos app.
Arabic (Saudi Arabia), Catalan (Spain), Czech (Czech Republic), Dutch (Netherlands), English (UK), English (US), Finnish (Finland), French (Canada), French (France), German (Germany), Hindi (India), Italian (Italy), Japanese (Japan), Korean (Korea), Polish (Poland), Portuguese (Brazil), Russian (Russia), Simplified Chinese (China), Spanish (Spain), Spanish (Mexico/LatAm), Swedish (Sweden), Thai (Thailand), Traditional Chinese (Taiwan), Turkish (Turkey) and Vietnamese (Vietnam).
Windows 10 Technical Preview for phone Demo: