I've been playing around with the XSlimmer trial and was wondering what people think of it. It basically deletes any Universal Binary junk or Localizations you don't need. Is it worth $11.95? So far it seems to kill any plugins you may have in Safari and I would imagine other apps as well (Mail, iTunes, etc). I really don't see how it can bring my Mail app from 287MB down to 24MB without trashing the emails I have in folders as well. Or iPhoto from 285MB to 148MB without trashing all the thumbnails? Or Address book from 47.5MB to 4.04MB without trashing my contacts? It seems like a good idea in theory but does it work well in practice?