I noticed that you also use simple viewer for product galleries. They have a new iPad, iPhone friendly version available now. [Link: simpleviewer.net]
Its totally automated via adobe air. You choose the images by browsing to a folder. Use check boxes to customize the layout and built it. The rest is automated. I was able to change out 10 galleries in half an hour.
The only thing you lose is the ability to use your mouse scroll wheel to scroll thry pics. But you gain the ability to swipe thru images on the iphone and ipad.