Marco Arment quipped on Twitter that web designers need to take HiDPI displays seriously, and adapt their designs to look great on them. [...]
Why? Because HiDPI customers may be a fringe group, but they are a forward-facing fringe. They represent the users of the future, and the more we cater to them now, the more deeply embedded our products and designs will be intheir culture. The future culture. The same arguments apply to aggressively embracing newer web browsers standards, and the latest technologies in platform operating systems such as iOS and Mac OS X.
— Daniel Jalkut, Target the Forward Fringe