MapQuest Nominatim Licensing

Hi:

I wonder if I could ask a question? The MapQuest licensing has changed from:

http://developer.mapquest.com/web/info/terms-of-use
http://developer.mapquest.com/web/products/open

To something I am not clear on. On:

http://open.mapquestapi.com/nominatim/

"The Nominatim Search Service is similar to our MapQuest Search Service with its simple interface and powerful capabilities, but instead relies solely on data contributed to OpenStreetMap."

The only license reference on the page is: "OpenStreetMap data is licensed under the Open Data Commons Open Database License (ODbL)."

So it appears use of the service is covered by the OSM license not http://info.mapquest.com/terms-of-use/.

I could not find a specific license for OSM in MapQuest .

Is MapQuest abiding with the OSM license (http://opendatacommons.org/licenses/odbl/1.0/) which in section 4.4 (Share alike) that defines how the data can be re-distributed, and Section 4.7.a.: where the terms of the OSM license cannot be restricted.

Signing up for a key goes to: https://developer.mapquest.com/legal

Which makes no mention of Nominatim.

Can you clarify?

Thanks!