Thought I'd share something here seeing as it is very PD related.
We've been working on an iPhone app for the Inception movie. It creates personalised audio dreams using the soundtrack of the film and selects them based on activities in your life.
The whole audio engine is based on Pure Data, which is doing realtime microphone effects, accelerometer tracking and sample manipulation.
If any other PD'ers have an iPhone or iPod touch it'd be great to hear any feedback.