The screenshots show some of the new screensavers, media browsers, Bluetooth controls, parental controls and some new terminal options.
The pictures are pretty underwhelming and seem to be just cosmetic add-ons to existing OSX functionality. It seems that both Apple and Microsoft have decided that playing it safe and sticking pretty pictures on top of their old operating systems is the best policy.
Even the Apple fan boys who saw the screen shots think that what Apple is offering is a tad old hat.
More here. µ