Yes. But the question in my mind was whether that info might show up on the GPS screen where a POI's lat/lon & elevation info is displayed. For the Oregon, the screen I am talking about appears when one moves the pin to a POI such that the POI name is displayed in a box which appears at the top, and one then taps on that box (don't know if that box has an official name!). It seemed the only way to answer the question definitively was by actually testing. But no joy.
To me it would seem logical for POI's to have a "description" field associated with them, just as GPX waypoints have a "<desc>" field associated with them and KML placenames have a "<description>" field - but I've never heard such a field mentioned.