And then there's the Windows File System (WinFS),
which Microsoft is still working on. Whether or not
Microsoft will have WinFS ready for business in just
two and a half years is unknown. At first blush, that
would appear to be an aggressive timeframe. But
then again, it was supposed to have already been
done by now.
Chances seem good that WinFS will be slated for
the post-Vienna release of Windows, which some
people have speculated will be the next major
release of Windows after Vista, and will be bigger
than Vienna. That release, which Microsoft also
hasn't publicly named, is reportedly due two years
after Vienna.