OOOOKKKK....
I just fixed the GUI problems...easy thing.
I found out which is the problem related to crash using any function: alert boxes!
I removed every alert box and everything went fine.
Now I have to find out what to do in order to fix it. I even can't understand what and why Amazon changed!
Alert boxes are a basic functionality in javascript!
I think the problem is related to how the kindle manages popup..
Rotation has a different problem:
5.1.0 firmware adds the rotation support (sort of....
) but not for the browser and, therefore, not for WAFs like ImageGallery!
Summing up:
portrait version should be fixed soon (I have to learn how to treat pop-up)
rotation version will probabily need more time!
Damn Amazon...