Very funny pictures <a href="http://xvedio.in.net/xvidoes/" rel="nofollow">xvidoes</a>  Broker Panmure Gordon analyst Gert Zonneveld suggested that, based on the valuations of other publicly listed mail companies, Royal Mail could be worth between £3.7 billion and £4.5 billion. That implies that the shares could shoot up to a sizeable premium when trading starts next Friday.