dmaul brings up the excellent point of academic reading which mirrors my needs for legal reading- contracts, research, cases, memorandum, etc.- interactive, non-linear reading that is both short and long form. And when I do kick back to read for pleasure, occasionally it is long form (for me, biographies), but typically it's journals, newspaper, or magazines which have been itching to give a rich media experience (whether they squandered the opportunity presented by the web is a separate debate, but the slate form with touch seems to be justification enough for them), these concepts for example:
Mag+:
http://vimeo.com/8217311
http://vimeo.com/8220802
Sports Illustrated:
http://www.youtube.com/watch?v=ntyXvLnxyXk
http://www.youtube.com/watch?v=3WeaC5QDUpg
Wired:
http://link.brightcove.com/services/...id=66775419001
Fake:
http://www.youtube.com/watch?v=wnxGNwifqLQ
The whole scope reading encompasses more than just long-form, linear, passive reading!
Edit: In the interest of fairness, there certainly is this strong counter-point...
The Sun (UK, tongue-in-cheek):
http://www.youtube.com/watch?v=fVMnmTFxAjA
http://www.youtube.com/watch?v=YJ1QwExp0_g
Until my e-display can multiply (size/qty) at will like a stack of paper can, still going to be relying on printouts for quite a while.