HP ships their Win 7 Slate for $799
It has a USB port, headphone jacks, keyboard button (including the always useful Alt + Ctrl + Delete key). Interestingly the right side is also home to a slide-out Windows license.
These are the sort of decisions (Ctrl + Alt + Delete) and required Windows license sticker that really just go to show that MS still thinks of tablets as PCs. Oh, and the fact that it is running stock Windows 7. They don’t get it.