I dunno, the maps work well enough to guide you back home should you take a wrong turn out in the wilderness. But yeah, not much use for finding specific features. I wonder if some clever modder/texture maker might find a way to increase the resolution?
GodBen - I have to give Notch props for taking care of bugs in a fairly prompt manner. I think its just the way he just tends to add features in a random, half-assed sort of way, then just seems to forget about them. Wolves, the Nether, Achievement, that sort of thing. They're good ideas, but they only seem half finished.