I use iCabMobile browser on iPad for several reasons. Easy Font size changing, zoom enabled for all sites, desktop user agent, I hate mobile version websites on iPad, especially Google search results and Wikipedia. Completely customizable UI for buttons such as Fontsize, nice full screen mode with floating buttons. Its a bit slower than Safari but worth the tradeoff. It amazes me that Safari desktop has Fontsize control but mobile (where you need it more) does not. I know there are hacks using bookmarked JS to get this but they are not as convenient as iCabMobile.