From the article, the game is again redefined with iCloud. Is the new combo Macbook Air + iCloud?
I think certainly the HD space is not needed, and the SS speed boost is great. I think for developers, the Pro version is still the choice. But who knows, there might be cheaper deals for older models.
Definitely after 5 years, my Macbook is due to retire. It can’t possibly handle OS X Lion anymore. It’s time to make way for the new laptops.