I've had my C905 for about a month now but I am really regretting not getting an iPhone.
My C905 is unlocked and comes with an 8GB memory stick, all the accessories, boxed and has 11 months warranty left. It is in pretty much mint condition as well.
I got the phone from O2 so the case and box have no branding but the software has a small amount of O2 branding on it.
I don't mind whether the iPhone is unlocked or not as I will be using it with an O2 sim card.
I have 24 100% feedback on eBay (Username: pezowned) and also 10 positive and 0 negative on GRcade forum (Username: The Perrin).