Hi group,
We released an iphone/ipad app for microscopy image viewing in March and have made the source code available to anyone interested. The app is called ‘Whole Brain Catalog Mobile’ and demonstrates how to use a 3d camera, frustum culling, threaded downloaded, etc on an iOS device.
Have a look: http://wiki.wholebraincatalog.org/wiki/Whole-Brain-Catalog-Mobile
Demo video: http://vimeo.com/16454765
Unfortunately development has stopped but the code should still compile out of the box.
Cheers’