What a bummer, I finally had everything working on my iPad: my good old ribbon compass, a fancy full screen button, switchable info hotspots, and even a hotspot linking to another pano.
But now it looks like that linked-to pano doesn't fit in iPad's memory, only three of its cube faces are visible after the switch : (
Here are some screenshots:
(I am using GoodReader to store and display (fullscreen!) my panos on my iPad).
What cube face size would be the maximum for the iPad to successfully link a number of panos?
For now mine are 1920x1920 for reasonable display quality on a 'normal' screen, and although the iPad apparently scales them down internally, they still look okay on it.
Perhaps a better strategy would be to get rid of the cube faces of the 'host' pano from RAM before the new ones are loaded, only then could we create a sequence of an unlimited number of panos.
It would be a real shame if we cannot make proper use of the iPad's brilliant 1024x768 screen only because of memory limitations.