Following the post about Vodafone's data charges in the UK, it has come to our attention that T-Mobile, at least here in the UK - have managed to better their larger rival.
T-Mobile have taken Vodafone's worst tariff (£7.50/Mb) and applied it to their contract customers.
They have gone well beyond that for their Pay as you go customers: their site and call centre were unable to give me any information on GPRS charges for PAYG, but Carphonewarehouse do have the infomration displayed nice and clear on their site. There is a charge of 2p/Kb, making it about £20/Mb!
There are data bundles available, but they are apparently only for contract customers.