My research and conception work on the export dialog is now complete enough to be published. I made quite some progress on the layout front, but still have a way to go until I can present mockups.
Meanwhile it would be great if folks here could read my document and make sure it's all complete, clear and solid. Comments and suggestions on structure, style and grammar are also welcome ;)
Attached as PDF (you need to have an account and be logged in to see it).