Well, I'm on my second go at putting all my music on. :)
Plus, I suspect my next transfers will be more on the order of 10-15 albums at a time, not 1 or 2.
It's a feature which I think can be very useful at a later time as well when there might be other maintenance tasks which require a long sync operation.
Of course, I'd much rather have another suggestion which I haven't mentioned yet: An elapsed time display on the sync dialog along with processed and remaining file counts. Possibly with a transfer rate display as well. Of course all this stuff can take a back seat to something Roger has already mentioned - some scripting support. :)
Bruno