As I posted earlier, I do seriously doubt the sustainability of the claim of GMail – I got another idea behind the claim too. Consider this – if you do not do much of calculation and blindly start saving the mails. In three years you exhaust your 1 GB space and then? Charged for more space? And at that stage it might be impossible for you go through 1 GB of mails to delete the unimportant ones and retain the important ones. I am not saving mails blindly – whatever you choose to do for yourself!
I can hear Karishma saying I think too much – but so what? 🙂