I am already using xenforo on my other site and I have to say i like it alot. Now I would like to transfer my other site (phpbb 3.0.11) as well but it is using quite large filebase with 1100+ files. Filebase is using mysql database so I guess it would be possible to convert it using some kind of converter. This would be better than transfering all files by myself. Also uploaders would stay intact.
Let me know (PM) if anyone is interested in taking this job. Currently I have no license yet, so I can only give access to phpbb database in order to review it if its possible to create converter at all!