Update: If you take a look at the Verizon support doc now, you'll notice Isis support is no longer on the list of new features. Interesting. We've kept an image of the original below for comparison.
If you head over to the Verizon support site right now, you'll find that the DROID Incredible 4G has its first over the air update on the way. You can also check out the software update PDF if you're looking to be slightly disappointed.