Why Is Accessibility So Hard?
From: Communications of the ACM - 11/2012 - page 7
By: Vinton G. Cerf

"I sometimes think that, of all the disciplines, ours ought to be the most
effective in adapting the vaired needs of users, including those that are
challenged to interact with computing systems in one way or another. From low
to no vision, deafness or hearing lossto carpal tunnel syndrome and various
other physical limitations, we really should be able to configure our
software to adapt. And in many cases, some very useful, clever, and
general-purpose software adaptations have been achieved. But the problem
persists, and it is still not the case that one can hold high expectations of
accessible adaptations for a random application that happens to become
necessary or, at least, of high interest."  

Read the entire article at:
http://mags.acm.org/communications/201211/?CFID=132304346&CFTOKEN=94354855#pg9
http://delivery.acm.org/10.1145/2370000/2366341/p7-cerf.pdf

Related:
ACM Transactions on Accessible Computing (TACCESS)
http://dl.acm.org/pub.cfm?id=J1156