We don't "need" another browser. Firefox can be customized to suit anyone with add-ons and plug-ins and it's plenty fast. Add the IE tab plug-in and you can open Explorer only pages inside Firefox
Opera is probably the fastest of all and is my choice for smartphone browsing.
Safari=Ho Hum.
Choice is never a bad thing. I don’ t particularly like FireFox myself. Opera comes with all of the addons I would use in FireFox standard.
So far this Beta has been really impressive.