I think a lot of the software is designed in vectors, so it might scale up. Frankly, I wonder if our eyes will notice. I remember everyone all excited about 3D in movies and HD screens…but I go and in 30 min my eyes stop noticing the difference. Even if it doesn’t look good, I’m sure updates will come out shortly to address it.
My only concern about the Retina Display thing is on mobile. I see many speak of how much bigger I’ll have to make images and sites as a web designer…but I still see our infrastructure is in the past. So that 1000-pixel image might look good on an iPhone or iPad screen, but will take forever to download on a 3G system that more has the speed of a dial-up.
I dunno…I wish Apple and the rest pushing these new screens would also push for infrastructure improvements so we can fully utilize data. It’s why I don’t trust the idea of cloud DJing. It’s hard enough to get a solid reliable data stream through cell or wi-fi as it is.