SO, WHAT’S NEW IN 3.5.2?
There are 2 major enhancements in 3.5.2, Personal Repositories and a Details view.
PERSONAL REPOSITORIES
In 3.5.2, a new module settings has been added, “Personal Repository”. It is a checkbox and if you check this option, then the Repository will act as a file repository for each individual user. That means that users will be able to ONLY see the files that they uploaded. They will not see other files, uploaded by other people in the same module. This gives you the ability to grant a personal file store for each user. Of course, admins can see all files uploaded by everyone into the module.
DETAILS VIEW
3.5.2 adds a new “Details” view that you can use in your templates to provide a more informative page to your users when downloading an item. What this means is that you can now define a new “details.html/details.xml” template and add a link to the main “template.html” which is used to display each item. You can use the details view to provide a more detailed description of the item prior to the user downloading it.
Read the full Blog announcement at Gooddogs.com for more information and an example of the new features
http://www.gooddogs.com/Blog/tabid/97/EntryId/17/Repository-3-5-2-Beta-released.aspx
Hope the new features prove useful. The 3.5.2 beta will be up for you to test over the next week or so, and if no issues are reported, it will be released into the DotNetNuke module release program.
You can download the 3.5.2 Beta at
http://www.gooddogs.com/Downloads/tabid/100/Default.aspx
and if fact, you can see it running there as well 
Click on the View Details hyperlink on any of the items listed and you will see the Details View where you can read more about it and download the file.
Enjoy