A content delivery network, e.g. Akamai, is a reverse proxy and SE spider will always see the nearest cache of a website. So if you have a UK website and use a gloabal cdn Google is going to think your site is hosted in the US i.e where the spiders operate from. This will affect your rankings in the UK, so how can you overcome this? Does Google work with Akamai to get a real geo-location? Has anybody got any experience of this?