UMA/GAN Support

Does anyone know which ISPs support UMA/GAN through their system?
I am just about to get an Orange Blackberry which supports UMA/GAN

Hi, my company is an Orange Authorised Dealership and we have been informed that UMA is available on all Broadband providers. If using Orange, as far as we are aware, Orange is also the only UK network which is supporting UMA. I currently have a few customers using this service and none have complained about any Broadband provider which doesn't support UMA.
Please feel free to email me for further help and or support;
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www.digitelsolutions.co.uk