There is a rom in development. But it is not done yet. You can download and install it (after partitioning your SD card), but there are some things missing and others do not function well. For instance, phone calls do not work with 3g turned on. The devs (and some guys at XDA) are working on the problem now. Hopefully we will have a nice Sense UI rom available in the next few weeks. The dev is on alldroid...It's in the Greek35T subforum and the rom is Zeusdroid Desire Rom.
It is much harder to port to the Droid than the N1, since the N1 is an HTC phone. The guys are doing an amazing job though...