The Yahoo! Briefcase service will be closing on March 30, 2009. You must download or delete your files by March 30, 2009. After this date, you will not be able to access your Yahoo! Briefcase account and your files will be deleted.
Mar 16 2009
Why? Because, in a Web 2.0 world where Yahoo! Mail has unlimited storage and Flickr offers media sharing, users and services have outgrown what the Yahoo! Briefcase service can provide. As such, Yahoo! is closing Yahoo! Briefcase to focus our efforts elsewhere.