Thanks you for your help Leo.
I finally got Eagle Eyes going over 3G/GPRS by changing port to 8080 (I did this before I saw your response). I guess Orange (my mobile provider) blocks port 80 for some reason (although it is strange that it still worked on the Safari browser).
Likewise with the gmail account (and your port recommendations!) I got email! Interestingly, the "standard" gmail smtp port that my Outlook used did not work with gmail but yours works a treat.
Nest question - how do I play the MIME file it sends me? None of my browsers seem to like it very much.
Thanks & regards
Stuart