No, for several reasons:
1) Even though both are 3.7" screens, the N1 is actually 800x480 compared to the DROID's 854x480. The N1 screen is missing about 26,000 pixels worth of real estate thereby making the screen a bit more squarish than long rectangle. A DROID's screen protector would be too long and too thin.
2) The DROID's screen protector covers all the way up to the earpiece with an earpiece cut out. The N1's screen ends before reaching the earpiece. Again, shorter and in no need for a cut out in that area.