Zooming in all the way in Maps
I have the same exact problem as you. I haven’t seen anyone else besides us with this problem. It has nothing to do with the street view feature. If you want a “street view”, of a location, it simple. While you’re in the maps app, using the “satellite” layer, simply press and hold a location. When the address of the location pops up, there will be a picture besides it. Press on the picture and a menu set of options appears. If the “street view” feature is available for that location, the “street view”option will appear. Choose the “street view” option and you’re taken to the street view.
As far as zooming is concerned, I can only zoom in so far until I get a white overlay with a bunch of little magnifying glasses basically telling me to zoom out. This just started happening yesterday. I've had my Droid for 3 weeks and the maps were working fine until yesterday. Prior to yesterday, I was able to zoom in all the way and never saw the white overlay before.
I called Verizon and they didn't know how to resolve it. I did a factory rest and it didn't fix it. I'm going into the Verizon store today to perhaps exchange my Droid for a new one. I'll let you know what happens. If the representative resolves the issue, I’ll give you the fix. If you are still within your 30 days of purchase, I suggest you look into the issue since it is in fact a defect and not a normal function of the Droid to behave in this manner.