The early build of Office 15 showed up on several file sharing and torrent sites. The build, 15.0.2703.1000, includes Microsoft’s tile-based Moorea application. “Mooera” allows users to add documents, pictures and text into the app as tiles of content. Moorea is believed to be a new application that will act in a similar way to OneNote, featuring Microsoft’s Courier concept UI.

Microsoft’s Metro based UI for Outlook leaked fully recently, following the first Office 15 screenshots in early March. The early Outlook screenshots also revealed that Microsoft is implementing a Metro UI across its next Office product