As Gabe just announced on the Windows Blog, the latest Windows 10 Technical Preview build for phones is now available. With it, we are delighted to announce that Project Spartan for Windows phones is available to preview in this build.

It's been just over a week since Project Spartan was available in the last desktop flight, and the feedback we've received has been tremendous—both the kudos and many ways we can improve. We are humbled that so many people have taken the time to send thousands of pieces of feedback, and to add thousands of votes on features at our desktop Project Spartan Feature Suggestion Box. Thank you!

This build, like last week's desktop build, is a very early look at software that we’re actively developing. You'll still find Internet Explorer 11 as the default browser in this preview – in a later update, Project Spartan will be the only browser included on Windows phones. Project Spartan can be found in the All Apps list, and you can pin it to the start screen yourself.

Project Spartan for phones has the same new rendering engine available on the desktop, with the same support for the latest standards and the same strong focus on interoperability with the modern Web.

You'll find that this build has our new design for our Windows phone version, with the address bar on top, and a small actions bar at the bottom (a bug in this build means that the actions menu is larger than its intended to be). We’ve heard your early feedback about the position of the address bar, and we are looking closely at the design. We encourage you to try out, see what you think, and continue to share your feedback with us.

You'll also find early versions of the mobile reading view and reading list. Other features will light up in future flights.

Please try out the new phone build and send us feedback. We are listening. In addition to the feedback option in the app itself and the Insider Hub, you can also add suggestions and vote in our new Project Spartan for Windows phone page on uservoice.

Kyle Pflug, Program Manager, Project Spartan
Source: Project Spartan now available in the Windows 10 Technical Preview for phones - IEBlog - Site Home - MSDN Blogs