I would like (yet again) to give a massive thumbs up to the company Therapy Box who do some great products and are incredibly helpful and flexible in their customer service (Disclaimer: I have no commercial links with this business at all-I just think they produce great products and more people should know about them]]
The app Scene & Heard is sheer brilliance. A really easy way to produce multi media resources of and for your child and family-dead easy to make a great little personalised film, adding pictures, symbols and sound files and so ridiculously easy to use.
Huge potential for I think particularly non verbal children-sending them to school with all of their news from the weekend (ie footage of what you have been doing)loaded up on the iPad to share and enjoy with the rest of the class.
Also potential to use it to make introductions of maybe new schools, or places like a dentist or dsoctor's surgery to better prepare your child for new experiences.
Therapy Box do tonnes of free training as well where you can see this, and other stuff demoed so well worth looking to see if they come near to you.