Reviews in general

What would be great for authors and promoters would be to have a top end interface where reviews could be gathered in one place.

It would be especially helpful if the global giants such as Amazon could share reviews across all of their file extensions e.g. .com .co.uk .ca etc...

Is it just me that thinks this is a good idea? After all why wouldn't a reader in the US want to read a review that originated in the UK. I'm talking of a review based upon the same work available across multi sites...

Seems odd that this has not happened yet. Perhaps anybody else out there that has similar views may wish to add something?