I am now selling my Iphone 3GS 16GB in 9/10 condition as i've bought an iphone 4.
There are no marks on the back or the screen as it's been in a case since day one and had a screen protector on too. The crome bezel has some minor scratches cause by dust entering the case.
There is currenly an incpio feather case on the iphone and a SGP AntiGlare Screen protector on it and i will include this as well as the spare screen protector.
It is offically unlocked by 02 and was bought from the Apple Store on Nov 18, 2009 so still has some warranty for piece of mind.
It comes boxed with all it's original accessories and i will also provide provide a copy of the invoice.
It's currently installed with v4.0.1 and has the SHSH blobs for previous versions in cydia after Nov 2009.[img]http://s2.postimage.org/9teFi.jpg[/img]