I recently signed up to T-Mobile Web 'n' Walk as my 3G datacard from Vodafone had 3G coverage issues and GPRS is hopeless at sending and receiving large files.
I managed to get the 8100 working as a modem at 115.2 kbps and the phone indicates GPRS.
Has anyone managed to use it as a 3G modem in the UK? Can you set the phone to use 3G only?