AT&T and Apple today announced a new Text Accessibility Plan (TAP) for the iPhone. Aimed at customers who are deaf or hearing- or speech-impaired, the plan offers unlimited text messaging, Web browsing, and simplified e-mail access for $40 a month.

TAP is available to new and existing iPhone owners who qualify, via AT&T's National Center for Customers with Disabilities (NCCD). Potential subscribers must complete an application on AT&T's site to become eligible.

"Our Text Accessibility Plan allows customers who are deaf or have hearing or speech disabilities to literally tap out their communications on the go," said AT&T Wireless's 's vice president of product management, voice products, and affiliate marketing Carlton Hill of the new plan. "Now with TAP for iPhone, users can tap, flick and pinch the innovative Multi-Touch touch screen for a completely new world of functionality."

AT&T has announced plans to offer TAP for the majority of its handsets and is introducing more features to help assist disabled users, including Mobile Magnifier and Mobile Speak. For more information on the company's offerings for the disabled, check out AT&T's site.