There's no more need to enter an address first to get a map. Now you can do a category search starting from a map interface. This was one feature that Google Maps really had over Yahoo! — until now. Yahoo! has also made it possible to host its maps on third-party sites. This will also make Yahoo! Maps more competitive.
Check out local events on a map — an especially interesting marriage of mapping and local search.
Journalists typically ask what part of this mapping craze is novelty and what part is utility. I say that novelty becomes utility as maps get better and consumers discover they can use them for more things. And they will.