The iPad is attracting a lot of attention in the special ed/learning support arena at present. Some considered. Some media hype. But it definitely does have a place in the special ed technology toolkit.
One of the areas in which it falls down is its volume in social settings for augmentative and alternative communication (AAC) users. It needs additional amplification to make it more successful as an AAC option when there is other ambient noise. The iAdapter from AMDi is a rugged protective case with in built speakers which allow for much higher volume output from the iPad.
Spectronics did sell the iAdapter for the original iPad and the iAdapter 2 for the iPad 2 for a short time, but we are no longer supplying it. It is still available however from Adam Lynn at Communicate AT in Australia and from Desktop Technology Services (DTSL) in New Zealand. Hope this helps you to track one down!

not a big loss. i thought this product would be good for all young kids. it doesnt stop kids from opening the shutter and accessing the home button, there are known volume bugs, and it makes the ipad so friggin heavy, good idea but a dud in my opinion. also, i think ipads are terrible for kids on the spectrum (unlike kids who are classically autistic). it just keeps kids tuned out of the world of relating to others. Ive yet to see it do anything but entertain kids. other than using it for a language drill, cant see much purpose. dont feel badly if you dont have an ipad!