Not sure how this will work but here is the concept...
I have a Samsung Omnia windows mobile pocket pc and want a Sony Ericsson X1 Xperia (just as an example) so I upload a min of 4 close up pics of my phone. Front screen off to see if highly scratched, 1 with a phone on to see it is working and a couple at different angles with box and contents if any.
Everyone doing exchange has to do the same and be willing to do the deal as a swap and not a quick sale for cash. Both parties must agree on a value for their handset as if you was to sell something on Ebay to buy alternative, you would incur charges so it is about being willing to accept something you would be happier with. I don't think anyone here would like to see someone being ripped off but also being the most expensive handset doesn't mean the BEST.
I post my phone by Special Delivery and post here the tracking ID - or just to the person exchanging
Same day exchanger posts their mobile by same delivery method and also posts tracking ID
Thankyou to fellow member for suggesting to add a link to some trusting feedback. Here is mine - http://myworld.ebay.co.uk/evrae_lisa/