Finally, apps will now launch faster from the Start screen if there are incoming Live tile updates at the same time. (blogs.windows.com)
They will also lose the useful live tile updates that displayed information at a glance, and users will no longer be able to locate devices with the «find my phone» feature. (theverge.com)
For example, Chrome for Android opens these websites in their own windows with no browser interface, while Windows 8 and Windows Phone offer live tile updates on some websites. (howtogeek.com)