The ability to link into the middle of mobile apps is massive. Imagine where the web (or AdWords) would be if the deep content within websites was not able to be indexed or referenced. Right now, most mobile developers don't implement deeplinks, and even fewer marketers use them to drive traffic.
In concept, "URX" represents this next version of the URL that is built for the cross-screen, native/web world. URX's mission is to help app developers and marketers enable and monetize deeplinking in their mobile apps, and the name "URX" keeps us honest to that.