naming considerations for arcgisimage

I am a little bit hesitant about the name "arcgisimage" for the new feature added to basemap recently. First off, I am concerned about using a trademark in a function name. Second, is it over-specifying what it is that this function can do? Why not "wmsimage"?

Lastly, on a related note, does basemap have an rcparams mechanism for storing defaults like the url and service names?

The issue names the arcgisimage feature and asks about an rcparams mechanism, but it identifies no files, tests, or entry points. Start by locating the feature and existing configuration patterns; done requires a decided function name and a clear decision on whether URL and service defaults belong in rcparams.

Written by the indexing model from the issue text.