What the cynic in me finds interesting in Retina displays is how people will tend to hit their data caps more quickly on their mobile plan merely because they are downloading more pixels.
"...hit their data caps more quickly on their mobile plan merely because they are downloading more pixels."
Surely the caps will increase in size as a consequence of improved mobile-data-pushing-technologies and to keep up with the need, just like the speeds of broadband-connections have since they were introduced?
It should also help at getting those caps increased. In a major city cell phone providers not having capacity in 2012 should be lambasted for not expecting usage to increase. This is only the harbinger of things to come, we need to provide pressure on the providers to drop the (when technically unnecessary) data caps. They don't fix the congestion problem and only exacerbate these problems.
Also, its about damn time we have high dpi displays, we've been stuck at 72/96dpi for far too long on regular computers. I welcome this change and all it brings.
Would be nice if only the supported artwork assets were downloaded to a particular device. This could help w/ the data caps issue. However there are corner cases like universal iOS apps.
Surely the caps will increase in size as a consequence of improved mobile-data-pushing-technologies and to keep up with the need, just like the speeds of broadband-connections have since they were introduced?