Hi, I'm thinking about upgrading to a SE k700i or k750i (k750i if I justify it enough!). I remember seeing some navigation software on a friends mobile a few months back, however I can't remember what phone/software it was. I was really impressed and therefore it's something that's in the back of my mind for my next phone. I see that TomTom mobile 5 is available, which seems to be the best? However it only supports a small number of phones and not the 700/750 Does anyone know of any navigation software available for these Also, a newbie phone question ... I have a pay as you go Vodafone SIM in an old Nokia. Can I simply use the same SIM card in an unlocked or Vodafone locked k700/k750 to keep all my details and actual number??? Do I need to do any 're-registering with Vodafone?