Font size can definitely be annoying, although it hasn't bitten me very often - usually you can pinch to get a decent enough size. Far more frequently for me is

Font size can definitely be annoying, although it hasn't bitten me very often - usually you can pinch to get a decent enough size. Far more frequently for me is the header bar that stays pinned to the top or bottom of the page while scrolling instead of being at a fixed position. I'm not going to read a long article with only 60% of my already tiny screen. I've even seen sites that try to mimic the behavior of the address bar where if you scroll down it disappears but if you scroll up it pops back in. I've never once clicked on anything these header bars have to offer except by mistake...