integrate full openlayers capabilities (http://openlayers.org) (WMS, WFS, GeoRSS, KML ...)
A definite must have, it would open up a lot of possibilities
AdminPetr Pridal (Admin, WebGL Earth) commented
I am supportive for this idea as well.
Please read this to get mode details: https://groups.google.com/d/msg/webglearth/k-nmzkY-LlA/3H0UpHu8aLwJ