I managed to get my Neo connected to Vodafone PAYG using the scripts I found here. In ‘/etc/ppp/peers/vodafone’ I replaced ‘/dev/modem’ with ‘/dev/ttySAC0 115200′ and set user and password both to ‘web’. In the ‘/etc/ppp/vodafone-chat’ I changed the APN from ‘internet’ to ‘pp.vodafone.co.uk’.

I can now actually test my software without being connected to my PC which is how my Neo has been since I bought it. The battery life should hopefully be enough to do the tests I need to do with GPS.