Two things I would like to see, don't know if they are simple or not.
1. Ability to lock down the phone in either portrait or landscape. When I am lying about browsing it often rotates when I don't want it to.
2. A one touch bar to instantly take you to the bottom of a web page the same way the one that exists takes you to the top. This would be useful for regular users of forums such as this. 😀
There that's it, i'm not greedy.