Awhile ago I did a wired sync to my tablet. I synced only playlists which seems to have worked just fine.
Today I decided to try wifi sync for the first time.
My intent was to sync all my playlists. I expected it to just copy over things that had changed like new songs in a playlist or new playlists.
Instead it appeared to begin copying all 4500 songs in all my playlists. I say this because on the sync status window it showed every song being copied.
Why would it copy songs in playlists that hadn't changed since the wired sync? It doesn't appear that I got any duplicate files on my tablet so it must have just copied them over the existing files.
I am on 3.3.7310.