Thanks for your reply.

If it is up to me, it does not need to be a “App” or that interactive. But my customer has seen the “cool way” another company works with the ipad, and want's something as flashy as they have … so it's about the visual representation – i fear that jumping to different pages in a PDF won't do the job, even it would be suitable.

To make a bit clearer what i want to do: I have a Product X, with 4 info boxes (text description / technical data / optional components / prices). This product is presented on one page – the info boxes first are represented only by 4 buttons, that make a window “pop up” in an animation when touched. (More products to be on more pages – each one with 4 “sub-elements”.)

I have set up quite what i want it to do in Indesign (and it's animation preview window), the only question is: will this work on iPad too (i'll find out i an few days), or do I have to use overlay creator (which i don't quite understand how it could help in this from what i can see in this window and adobe's help files)?

As far as i do understand, iPad pdf viewers can't display interactive PDFs and Flash is not allowed …
So i'm left with folio format i don't yet quite understand what's possible, or create it in HTML (and hoping this will work – best in fullscreen mode …)