Does anybody have any experience developing with all of these for the iPhone, in particular with regards to the performance of sequential view/image rendering?
For example say a flipbook style app containing 100 slides containing images/videos/text and then quickly swiping through them, with smooth easing transitions between them.
Which technology would be best suited for this?
I have started to play with Titanium and so far it looks very promising, I would very much like to find some more resources about AIR on the iPhone but they seem (for me) to be quite scarce, any ideas?
I have used Phonegap and Titanium for iPhone development.
Titanium is a much better choice for your purpose as it runs the UI as native code.
Phonegap will only render your app in webkit, so performance is never going to be optimal.
Another framework you should consider is Corona – which has more in common with Flash than either phonegap or titanium.