Functionalities being dropped:
* An animated blue screen of death (including advertisements for Microsoft products);
* Integrating the filesystem with java, javascript, jscript, javavm, and just about everything else that will add no functionality but open a 1000 more security holes;
* New GUI effects that will make the desktop just as slow on a 3GHz CPU as it was on a 1GHz one under XP, just to keep up with the times (they can be disabled for a faster system, but the settings mysteriously come back every so often);
* New internet services nobody needs installed by default, and firewall that doesn't block Microsoft's own spyware;
* New pop-up blocker, which pops up a window telling you it's blocked the popup;
* New driver system which intentionally causes instability in non-certified drivers (which isn't really new, actually...);
* New device manager with even more useless features that don't help real problems - but it will have animated device icons;
* More rollback and system restore features. Use all that hard drive space you've got going spare to weekly restore all those viruses and trojans (and Microsoft settings);
* New registry registry. Keeps a database of all changes to the registry, including changes to the registry of the registry and even changes to the registry of the registry of the registry. Allows up to 40 different impossible-to-tell-apart versions of the same DLL to be stored on hard drive;
* A new troubleshooter that jumps directly to the "This troubleshooter cannot help your problem" page, saving a lot of time;
* Easy OS fix feature. Contains a copy of WindowsXP on disk, and reinstalls it automatically it whenever one of those essential boot files gets corrupted for no good reason. Again.
And finally:
* More half-assed and badly implemented stolen Linux features. Back due to popular demand.