Complete listing can be found at:

Special Education 

http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewMultiRoom?fcId=399470755&mt=8

Speak it! text to speech ($1.99)

http://itunes.apple.com/us/app/speak-it-text-to-speech/id308629295?mt=8

Language Builder $3.99

Language Builder is designed to help children accomplish the following educational goals: 1) Improve sentence ideation ; 2) Improve sentence formation; and 3) Improve receptive and expressive language.  Extensive use of audio clips promotes improved auditory processing for special needs children with autism spectrum disorders or sensory processing disorders.  Auditory playback of child’s voice offers reinforcement for language development.

Story Builder $3.99

Story Builder is designed to help children accomplish the following goals: 1) Improve paragraph formation; 2) Improve integration of ideas; and 3) Improve higher level abstractions by inference. Extensive use of audio clips promotes improved auditory processing for special needs children with autism spectrum disorders or sensory processing disorders.  Story Builder offers a rich and fun environment for improving the ability to create a narrative.

Sentence Builder $3.99

Sentence Builder is designed to help elementary aged children learn how to build grammatically correct sentences. Explicit attention is paid to the connector words that make up over 80% of the english language.  Sentence Builder offers a rich and fun environment for improving the grammar of all children.

I Take Turns ($.99) This app is designed to help special education students deal with taking turns.

http://itunes.apple.com/us/app/itake-turns/id357229392?mt=8

iSign ($4.99)

iSign is a tutorial and reference app for American Sign Language. They have a lite version which you can try to get a feel for the features. 

http://itunes.apple.com/us/app/isign/id288858200?mt=8