It would be nice if the application could pull the most recent executables from a compendium of up-to-date free applications. Naturally paid apps would need to be handles individually; however, having a "feed" from a site like "download.com" or "Softpedia" would expedite the procedure substantially.
This couldn't, of course, cover all applications. There is no foreseeable reason that a "Top 50" from various categories is unmanageable. It would make a great "slipstreaming" application too!!