Thanks for this, the better pinch zooming was something I was looking for but I don't see any difference on a iphone, I can still only enlarge 1 level like before and if you are in single page mode, there doesn't seem to be any way to go to the next page.
I also have some issues with Kindle's silk browser, that just uses HTML5 and gives me the full interface like if viewed in ff or ie but if I try to do anything beyond the first page (change pages, zoom etc) silk just stops responding.
Everything appears to be the same in ff and ie
TIA
-Chris