Whidbey is now known as Visual Studio 2005.
For a while it was scheduled for "late 2004" but a couple of months ago it
was changed to "First half 2005".
Community previews are available to MSDN subscribers, these are builds that
look ok and they are published so developers can play around with it. VS2005
is strongly connected with SQL Server 2005, so a delay in one product may
delay the other.
Chris