"Since the OS and apps will be in HiDPI mode" I'm pretty sure not only will many popular apps be updated but you can turn HiDPI off. With updated apps I belie

"Since the OS and apps will be in HiDPI mode" I'm pretty sure not only will many popular apps be updated but you can turn HiDPI off. With updated apps I believe you'd have to be using ~43% of your screen on chrome and UI elements to lose real estate when moving to the retina MBP.