Viewing Options
It would be nice to have three folder viewing options (list, thumbnail, large thumbnail). Every view should be independently selectable in each hierarchy level p.ex.:
Main Folder list view
Subfolder small thumbnails
Subfolder content large thumbnails
If 'list view' is now chosen in one of the hierarchy levels, it automatically applies to all the other levels. The shared folder view is always shown in 'list view' for the recipient. It would be easy, if the chosen view would automatically apply to the shared folder view too (or elegant, if a choice option for the recipient could be offered to change automatic view afterwards).