http://www.w3.org/WAI/Overview.html#x20080122a

There is significant overlap between designing Web sites to be accessible to people with disabilities and designing Web sites to be usable on a mobile device. When developers understand this overlap, they can more efficiently meet both goals. On 22 January, W3C published material describing this overlap. See:
First Public Working Draft: Relationship Between Mobile Web and Web Content Accessibility announcement e-mail;Web Content Accessibility and Mobile Web: Making a Web Site Accessible Both for People with Disabilities and for Mobile Devices introductory page;Relationship Between Mobile Web Best Practices 1.0 and Web Content Accessibility Guidelines First Public Working Draft.
We welcome your comments, preferrably by 4 March 2008. (2008-01-22)