I've read that Carphone Warehouse is a good place to buy a cheap pay-as-you-go phone while visiting the UK. We will be there in May for about a month and the first stop is London. So we could pick up a low cost phone maybe. On their web site they advertise a cheap mobile for $8 or so with maybe $16 for "top off" (minutes I guess). Here is the link: Pay As You Go Mobile Phones - The Carphone Warehouse
Has anyone here done this in the UK? Are the roaming charges reasonable including up into Scotland?