It would be sweet to use the tablet as a Wacom with a pen. I always thought those things were ugly as sin. Or better yet, Adobe can release tablet versions of their Creative Suite.
If Apple wants to, they can open up that
Made for iPod, works with iPhone group a little, and add the Tablet, then let a company sell a wireless stylus that could work with a 3rd party app.
Even if a third party company does release a stylus, the tablet/slate, as sophisticated as it may be, will pale in comparison to the actual DPI and sensitivity that can be achieved from a Wacom Tablet.