I didn't know you are still working on the code - I am happy enough that you reply to questions in this thread!
As for the song limit I have read about it and I was completely unsure how it would appear. My iPod is not rebooting endlessly but just doesn't show the songs. I will fiddle around a bit more. It is weird that sometimes it would show the tracks and sometimes not - even when I don't add or remove lots of songs. But I guess that in this case this is what is considered "unstable".
@TheEmpathicEar: You don't have to synchronisze anything. You can just files "send to ipod" or "delete from ipod". That's one of the great benefits of this tool.If you change meta in your hdd-collection and want them to be changed on your iPod as well, you have to resync these files. But you can also change meta directly on your iPod, and to make these changes visible you have to "update metadata".
2. I thought that I only changed tags in my music collection, then it was possible to make those corresponding changes to the same music in my iPod? Correct me if am wrong about this?