@stroughtonsmith I still have the iPhoneOS 1.x source for MobileScrobbler, though not really useful anymore since the Last.fm radio service no longer exists.

I suppose it can still scrobble your iTunes music to Last.fm with a new API key, though.

Here's the source zips for every release, and the final deb file for Cydia too: https://www.c99.org/projects/source/MobileScrobbler/

The scrobbler runs as a daemon launched by LaunchServices, so you would have to put everything into the right folders yourself without the Cydia install scripts.