The latest update for the Windows 10 Insider Preview for phones is now ready to be downloaded. The new build number is 10080 and can be grabbed by folks who are a part of the Windows Insider program by going to Settings > Phone Update to check for a new OS update
Microsoft has added support for new smartphones to this 10090 build including the Lumia 930 the Lumia Icon, the Lumia 640 and 640XL. In addition, this build will also work on the HTC One (M8) for Windows. However, Windows Insider leader Gabriel Aul has this one caveat:
"Please note that if you are on Verizon and your HTC One (M8) for Windows is on version 8.10.15143.154, you won't be offered today's build just yet. We are still working to offer the upgrade to Windows 10 for these particular devices."