Need an iPhone Software Developer!

What's the best way for me to contact a good software developer for the iPhone?

I have an idea for software the iPhone and iPod Touch that would find a lot of use in the special education market for kids with learning and speech delays, autism, etc.

There are assisted communication devices that cost hundreds (sometimes thousands)... that help these kids tell their parents and teachers what they want based on picture exchange communication. I think a $20.00 application could turn the iphone into a much cheaper and portable solution that could rival those other devices. I've got this app mapped out in my head... and there's a NEED FOR IT NOW. The schools would go nuts for it. So would parents!

Erik