Ok journaling is the wrong word. Tagged then.
http://en.wikipedia.org/wiki/WinFS
Many filesystems found on common operating systems, including the NTFS filesystem which is used in modern versions of Microsoft Windows, store files and other objects only as a stream of bytes, and have little or no information about the data stored in the files. Such file systems also provide only a single way of organizing the files, namely via directories and file names.
Because a file system has no knowledge about the data it stores,[5] applications tend to use their own, often proprietary, file formats. This hampers sharing of data between multiple applications. It becomes difficult to create an application which processes information from multiple file types, because the programmers have to understand the structure and semantics of all the files.
WinFS natively recognizes different types of data, such as picture, e-mail, document, audio, video, calendar, contact, among others; rather than just bytestreams as with file systems
For example, a search for "the phone numbers of all persons who live in Acapulco and each have more than 100 appearances in my photo collection and with whom I have had e-mail within last month"