Even when you don't agree with him, Andy Ihnatko is always smart, interesting and critical, and his hopes for Apple in 2013 piece is no exception.
Of all his points, the iPad-related ones are the most interesting, and I'd be unsurprised to see good APIs for both keyboard and stylus use cropping up in iOS 7. I wouldn't expect to see Apple pushing them particularly hard though; Better keyboard support will likely be related to Accessibility features (as with Guided Access in iOS 6), while pressure-sensitivity for styluses won't be shouted about until Apple's ready to ship a 13" iPad for all the designers and photographers that I know would kill for one.