1GB of GPRS
My trusty old Siemens S55 has an item called 'GPRS Info' it says a total of 1016.87 MB has been transferred. That's 1GB, if you consider the fact that the sim has spent quite a bit of time inside other phones such as the 6600, the 6630 or the P910i discussed here the total would be much much higher.
I have no doubt that this is the highest usage by anyone in Sri Lanka - in fact I intend to find out.
(since the previous post was rather lenghty, this post was kept short, so that nature's balance is preserved)