I have my iPhone 3G 8GB for sale or exchange. The only exchange I'm looking for is a mint condition iPhone 2G 8GB/16GB that is unlocked.
My iPhone was bought on launch day, replaced with a new one a few weeks ago and has had a screen protector on since I received it. It's boxed with manuals and whatnot.
With an exchange on an iPhone 2G (8GB), I'd be looking at £120 from you.
For a straight purchase, I'm looking for £320 plus postage (£8 or so Special Delivery), but would prefer collection (Shrewsbury).