Doesn't the iPhone have Chrome now? I know the iPad does.Apple’s Safari could be of interest for any PC user who also has an iPhone.
Firefox has had sync for ages and I think IE now has something similar (not sure as I don't use it much).Google has gone a step further with its Chrome browser. Anyone logging in with it can carry bookmarks and passwords across multiple computers, smartphones and tablets. The drawback is that Google picks up a lot of personal data in the process.
+1 for all the reasons you mentioned. I have been using it since version 3 when tabs were still a mind bending concept.I'm down with Opera.