AppleVis site has reviews of apps, guides, blog and podcasts.
Ken Spencer of EmpowerMac and a frequent trainer at MacNexus (Sacramento Apple support group), will show us how to increase iPhone and iPad accessibility.
Many of us wish we could increase the size of text we want to read, or we would like hearing assistance, such as closed captioning. In this seminar we will learn about features like Guided Access, VoiceOver, and AssistiveTouch that can help people with low vision, hearing loss and other disabilities use their devices.
NosillaCast Podcasts has several episodes related to assistive technology:
Testing Accessibility on iPhone & Mac - Blindfolded! (be sure to read comments)
In addition, there are apps to help people with other disabilities, such as communication aids for autistic kids as featured recently on 60 Minutes:
October 2011 -Watch Apps for Autism with Lesley Stahl (Proloquo2Go is expensive!) or read the transcript.
Do you want more? iPodsibilities Blog - Megan Wilson's Special Education App List:
http://www.ipodsibilities.com/iPodsibilities/SpEd_Apps.html
Melissa reports: "I called Ken Spencer to help me B-RS (Before Renaissance Society) with the Calendar apps on my work computer, my iPad and my iPhone. In just about 30 minutes we had it all ironed out! Plus he gave me new strategies for working with apps related to the Calendar like Contacts. Ken offers both 'online help' and 'in-person help.' I am confident that Ken can help you find solutions with questions about iCloud, Apple IDs or updating your devices."