Million Dollar Idea

Here's one for someone to steal. If you do, and make tons of money on it, please just send me one for free.
The idea is a small form fitting case for the iPod Touch that has a built in speaker and mic. The speaker wouldn't need to be any more powerful than a headset. This would be very useful for those of us who would enjoy using apps like Shazam, Skype, or ifog. The smaller the case, and more true to form, the better. Any thoughts?