The "Lizard Tweak" cut my file size by about 20% and SIGNIFICANTLY cut the number of files in the package (by maybe 75%). I had two mysterious devices lurking in there. One seemed to correspond to when I first synced the phone and had it stop mid-way through (the device file name had "in-progress" in the title) and had to pair it again, and the other corresponded to a db reset on the iPhone a couple of days later. Users that have experienced similar issues may want to check this out.