Starting this thread to discuss any UI design clarifications regarding the editor.

I am starting with the notion that the UI will look similar to usual rich text editors with primarily a toolbar and a text area. 'Coolness' factor to be primarily induced by silverlight controls.

I am assuming usage of images for the toolbar icons. I have seen a good GPLv2.0 collection of icons at http://commons.wikimedia.org/wiki/Tango_icon. Is it fine to use them for the editor? Its usage will necessitate us carrying the original GPLv2.0 license and warranty information, I gather. Is there any other ramifications that we need to be aware of? I request the community's comments on the same.