TUAW on Doodle Jump’s retina display update:

…also updates the graphics on the app to take full advantage of the iPhone 4’s Retina Display, so you can see the little doodle jumping up those platforms clearer and sharper than ever.

I’ve yet to see a side-by-side comparison of iPhone 4’s retina display vs. non-retina display on games (or anything for that matter)… but I’m dying to. Once I do see it (and get an iPhone 4), I’m sure all of our games are getting a nice, pretty update :-)