This is a good idea. Usually I do the MPG maths in my head each time I am at the pump (tripometer) because I can't be arsed to write it down in the notebook in the glove compartment. Being able to post via my Touch would be very helpful. Thanks.
I just saw there is an app for the iPhone/Touch. Cool. Not that there is wifi anywhere near the petrol stations I frequent, but I can at least enter data and then submit it when I get home (or work). Cheers.