In case your wondering, Mapquest is owned by Aol.
See also: Webpage(Graphics), PDF(Layers), Mapquest, Google Maps, Google Earth, OpenStreetMap or Yahoo!
I think this is mostly due to the fact that Mapquest supports the OpenStreetMap project.
With that said, the Mapquest app gets the job done
and doesn't have annoying services tacked on.
The jury is definitely in, however, on Mapquest's classification as a performance enhancer for traveling writers.
One area where Mapquest excels and Google doesn't is with international maps,
and apparently it works better in areas like Puerto Rico.
Also, Mapquest announced that the Hurricane Coast hired to manage
the investment fund one millionth of a free mapping, created in July of this year.
Mapquest began working with the OSM community earlier
this year when it launched the first beta site powered by open source data in the United Kingdom in July.
Overall the app isn't yet on par with Google's mapping ability, but if all you need to do is
get from point A to point B then Mapquest will fit your needs;