I'm glad it's not just me that has problems with MyGasWars. Initially, I thought it didn't even work in the UK but I was assured by the dev that it did. Only one of the prices that I submitted actually made it through - the rest still haven't appeared after a couple of weeks.
I guess what I'm really annoyed about is the fact that these apps look really good but are absolutely no use at all in the UK although iGas said they are hoping to eventually get the app working for over here.

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iPhone now rules my life!

None of these apps are very good. Without a way to submit corrections or remove imaginary gas stations, most of these fall flat on their faces...

It's kind of funny. In MGW, within about a five mile stretch of empty preserve land the app shows four fake stations. I don't know if they're mis-entered addresses or if it's intentional.

There are also stations which are missing from the services, which these programs do allow you to enter new ones, but I really just want to use it, not be a participant in it.

I don't see myself driving by gas stations in my area and then stopping in order to safely enter updated information. Without somebody doing that, the apps aren't very accurate or useful in the long run.

It's too bad that nobody is using the existing databases used by some of the sites doing this as they get many more users than iPhone apps do...