Another gripe: it doesn't do a very good job of saving your position when switching tabs, especially when the screen orientation changes. When I worked on Kindle I spent a hell of a lot of time making damned sure that zooming and pagination and location stability made sense. Clearly Apple didn't really consider a "reading lots" use case for mobile Safari.
Also, not really Appls fault but the Google iPhone portal sucks and won't let me stay logged in. WTF