Ringtone images hidden in iTunes 7.3

Oh yes they are folks, ringtone icons snatched straight from the newly launched iTunes 7.3 resource folder. First noticed by reader Michael (and confirmed by us) in the comments -- nice work, bro. So what could the little guys be doing there, after all, there isn't a Ringtones tab in any of the iPhone how-to guides unlike the slide presented at WWDC? Don't know, but let's hope they'll sit next little MP3/AAC ringtones we create ourselves for free and not just the ones we download from the iTunes store for a fee, eh?