Hello,
I just noticed this limitation as well and found this thread.
As a temporary workaround, one could think of adding additional urls to pages in page properties - an appropriate one for each language - and modify the SiteMenu User Control (and other navigation controls used) to pick the right one (maybe using a db table for storing the lookup {Main file name => localized file name}).
Or, one could implement a custom sitemap provider which does the job in a more central place.
Maybe this will help somebody..
I don't need the feature as urgently yet, so my question to the the Telerik support is:
Will Sitefinity 4.0 offer the possibility to localize file names out of the box?
Kind regards,
Florian