Comment 5 for bug 515128

Sourceforge + SVN has had this for ages and it is _really_ usefull:

If one wants to share the /trunk with the world and mortals it's really annoying to have to manually tar the /trunk yourself and then upload it somewhere, On top of that, this manually created package is also outdated with the next push that's done.

Sourceforge allows a person that browses the trunk to download it by simply clicking a link, neatly wrapped up in a tar. The main point in having the trunk easily available would of course be to let people take a look at the project without having to checking it out and learning / installing a VCS to begin with.