We’ve been seeing references to HiDPI display modes in OS X Lion and iOS iPad for a while now, which has helped cement rumors that Apple will release a Retina Display MacBook Pro, at least, in 2012.

As such, today’s report that Apple left a big reference to HiDPI mode intact in developer builds of OS X 10.7.3 isn’t a big surprise. The functionality can be seen in Finder’s “Get Info” window, and allows you to open a file or app in HiDPI mode, which (while non-functional right now) w...