MetroTube for Windows is now available through the Windows Store, allowing Windows 8 users to enjoy YouTube videos in an Modern UI optimized environment. It allows users to watch videos in HQ, HD and full HD, while also providing access to subscriptions, favorites and watch later feeds.
You can download the app directly on your device through the Windows Store or by using the link which follows:
Additionally MetroTube for Windows lets you customize the main hub and includes Windows 8 integration, which lets you share clops through the dedicated charms.
You also have Live Tile support which allows you to track when new videos for your subscriptions are available.
You can also download MetroTube for Windows Phone