I received my 5.5 today. Right off, let me say that it is perfect in every way (new back, new front, new phones, new connection cable) BUT, it is NOT an Apple refurbished Ipod. I should have known just by the fact that you don't see Apple refurbished products anywhere except Apple.
As soon as I opened the box, I could see the sticker on the front that said it was refurbished by a 3rd Party.
That got me to thinking...WHERE is a 3rd Party going to get enough Ipods turned in to make it worth the time to Refurbish them? Where did the original come from? Would Apple sell bulk units of "defective" Ipods? I doubt it.
The back looks just like an original, with all the proper markings. I just Rockboxed it with no problems. Later I will load it with some music and have a listen
Bottom line: no, it's not Apple refurb, but I'm fine with that. Where else can you get the 5.5 that looks like new for $135?
EDIT: After listening to various bits from Adele, Cat Stevens, and The Beatles I can confirm that this is a legitimate Ipod 5.5 generation (Rockbox recognized it as 5.5 also). The sound is identical to my already Rockboxed Ipod 5.5
If anyone is looking for a rig to Rockbox and/or IMOD, I would recommend these without reservation. I'm happy with this unit.
-Andy