What is it?
-Tracker is a tool designed to extract information and metadata about your personal data so that it can be searched easily and quickly.
++Tracker is a combination desktop search and metadata database providing +the ability to tag all your files and emails as well as searching for +them.
+By using Tracker, you no longer have to remember where you've left your files. To locate a file you only need to remember something about it, such as a word in the document or the artist of the song. This is because as well as searching for files in the traditional way, by name and location, Tracker searches files' contents and metadata.