An update to YouTube has started rolling out in the Google PlayStore and if it isn't available for your handset yet, don't worry because it eventually will be heading to your phone; the update, besides taking care of the usual bug fixes, brings some changes to the UI. Cards are everywhere and there is a multi-window feature that lets you view a video in one window while the other window lets you search or go through your feeds...Source: http://www.phonearena.com/news/YouTube-update-starts-rolling-out-brings-new-UI-and-features_id46560
