RSS the 10 latest post within unique threads

[ricker]

I think the title says it all ... we're working on an RSS widget for the board and many users don't want to see the last 10 posted threads, but rather that last 10 POSTS. Since we're still quite small this isn't too crazy of a request, but we'll have an option for which you'd like to see.

Can external.php get this task done? Has anyone seen anything close to this that we can start with? I looked into VBExternal but I still need unique threads (so that the 10 broadcasted posts aren't all from the same thread).

Thanks so much.