I have added a simple calendar which will be displayed in the place of a @ CALENDAR@ tag in your RESTxom templates (head or foot preferably!)
The calendar will include links to any days which contain posts, and those links will go directly to the archives, where that day will be shown, and you can locate whichever post interests you. I’d like to add support for allowing the browsing of months, but the handling of the 403 errors doesn’t seem to allow that…?