Other than posting here, is there anything else I should be doing to ask for this functionality to be included in the website? If they had this functionality, I would most definitely pay to upgrade my membership.
After looking into this a little more, it looks like the Dash can also import .KML files. Are those supported and/or offered on the geocaching.com website?
Ok.. found the ability to download .KML files (premium feature, oh well)... hopefully they will consider the GeoRSS feed though since it can be updated real time on the Dash GPS