Seems like a 50/50 chance
Im reading a lot of people trolling about how stupid it is to think the tablet could have a super drive, the lack of an optical drive is not an evolution on laptops, it can actually prove bothersome in a lot of cases, and has been the main issue that have made people i know to refrain from buying the MBA.
The MBA lacks optical drive because its purpose is to be light and small to the point of leaving only the essentials, its not better, its just different, and an optical drive is still almost always a necessity since we are still away from leaving optical media behind.
I think the Tablet would be useful if it was compatible with sensible stylus pens, specially for art professionals, but then again Axiotron has this covered, will Apple invade the Axiotron market?
If the tablet is not compatible with this stylus, then it would only mean a step forward in laptop technology, but not a particulary useful one, even when it would be more comfortable to use and clean. Maybe a purchase for tech and mac fans only, until all mac laptops come to use this technology.