I'd like to see much of the functionality assosiated with the GeoPortal Toolkit embedded in ArcGIS.com. Users of ArcGIS.com should be able to add links to OGC resources like WMS, WCS, WFS and CSW as content. Adding a CSW metadata catalog service should make it searchable through the ArcGIS.com search tools. Search results could then easily be opened in explorer.arcgis.com or the arcgis.com javascript viewer, saved as a web map etc etc..
Why? A lot of countries has SDI initiatives with rich CSW metadata catalog services available to the public. They contain a lot of data and services that is highly relevant to the ArcGIS user. They should be able to search, find and use ALL available GIS resources through a easy to use and intuitive interface like ArcGIS.com
