Aero Glass: An Aero theme that is the most graphics intensive utilizing 3D graphics, animation, transparency (glass) and other visual affects. It is rumoured that only cards with at least 64 MB of memory or more and that support DirectX 9 will be able to use this theme.
Avalon: A programming interface that will allow programmers to create applications that are tightly integrated into the core functions of Windows Vista. This includes a new graphics interface as well interaction with connectivity and storage.
Indigo: The next generation web services platform based on .Net.
.NET: The microsoft strategy that includes methods and applications for designing and building complex applications and Web services.
RSS: Though this acronym has a few meanings, it is most commonly known as Really Simple Syndication. It refers to a way of managing and important lists of information from various sources so that it is manageable and eays to use. Windows Vista and IE7 will have strong RSS capabilities integrated into these products.
Sidebar: The sidebar was an extra bar that would appear on the side of your Windows screen that would contain customizable information or widgets. Unfortunately, this has been removed from Windows Vista.
Virtual folders: Virtual Folders are search queries that are represented by graphical folders. They are not actual physical folders but links to predetermined or custom search queries that can be used to quickly find and show documents that match a certain critieria.
WinFS: Windows Future Storage is a database driven file system that allows for greater manipulation and customization of folders, files, and data types. This will not make it into the initial release of Windows Vista.
WinFX: Windows Vista's programming model that incorporates Avalon, Indigo, and eventually WinFS.