Images have surfaced on a Polish website purporting to be from Windows 10 for phones build 12521 - and unlike the previous leak, these are all in English, and have an even more polished UI.
From Neowin:
From Neowin:
Images of a new build of Windows 10 for phones have surfaced on a Polish web site, and although none of the images actually show the OS information and build number, they do look genuine, and are all in English rather than the Chinese leak we saw last week.Windows 10 for phones build 12521 images leak
Many settings screenshots are shown off, including the People app and Outlook account creation and deletion screens, showing off the new default circle user avatar rather than the square one we are used to in Windows Phone 8.1. There also appears to be an option to connect an alert to a phones LED, but it doesn't appear to work yet, according to the leaker.