Maybe I'm wrong, but I believe the iBook used to be way up 1st or 2nd of the refurb store... Could and probably does mean nothing, but it seems strange with all the intensity of supposed "slip-ups" from Apple reguarding the new iBook or MacBook.
Well things at the top get noticed more. I say they're definitely trying to rid themselves of the 15'' pb. The wireless stuff, which is less likely to be bought new anyways, is at the bottom. So I'm not sure if reshuffling signififes something.