"Yahoo and google have quirks"4.0 starson by psedog
Pros: Quick easy to use, one line input
Cons: Still in Beta
Summary: Of all the points and lack of points I've heard of, for using one map from the other, I have yet to see one that talks about the dates of the images used.
In my area of the world (San Diego) Yahoo maps has newer images than google maps. That really helps me out, because the streets I live on are not on any of the map services yet.
As far as having problems with images loading, I have had the same problems with the Google maps.