Just tested this. Confirmed that it works with multiple file transfers at once without freezing or locking up. This is a much more stable PS3 FTP server. It has no problems connecting. This should work well with many different FTP PC programs.
The new one by blackbox doesn't tell you the PS3 IP, so keep CJPC's FTP app installed for that purpose until blackbox's is updated to support that feature.
I'd like to see some animation or "screen saver" feature to prevent this from possibly burning into my TV.