Enabling HiDPI mode in Lion - use it to test the retina-readiness of your apps

What I find interesting about playing around with HiDPI mode is that there are a lot of apps that do not display text in HiDPI, or are mixed between scaled-up pixels and sharp text.

Whereas with the iPad transition most apps just needed to scale up their artwork, there are going to be a lot of apps that will have pixelated text on HiDPI Macs, at least at first. Sparrow, Reeder, etc.