I like the concept and it makes a lot of sense as I open a lot of different file, browse a lot of different sites and do not always remember the name.

I created a bookmark app (very raw), that orders my bookmarks based on the time they were save and it is tremendously useful.(the url for the bookmarker is public and is http://www.trk7.com/install/xxx.php (click on the calendar tab), just in case u want to check)