The two phones in this video go through a test of 2D graphics. The top Droid is running 2.0.1 and the bottom Droid is running 2.1.
Both devices are apparently identical except one is on 2.1 and the other is on 2.0.1. If this is the case than maybe the update should have held out until this issue was resolved? Maybe not.
If you have pushed the update or received it OTA let us know if you are receiving a lag in performance in the comment section below.