QUOTE(tinkerbel @ Nov 16 2009, 09:46 PM)
@justme3,
500MB is definitely more than enough if you don't use it to download stuff. I am on the move quite a bit and do quite a lot from my i3GS and thus far I haven't even breached 200MB p/month. Just don't start downloading using ur i3GS and u should be save.
@tnsai,
Your phone's jailbroken? There's not settings on mine to disable EDGE/GPRS.
Yep Jailbroken phone, thing is though, I don't know if I even need to use the jailbroken facilities to limit my usage.. I mean it is pretty much common sense to control the data usage.. if you are going to tether and use your phone as a "modem", please know that there are plenty of things working in the background of a computer that can use your data..
Windows Automatic Updates for example.. Virus definitions updates MSN polling with it's servers, Flash elements on a page loading etc etc ..
So far for me, I would say my usage is pretty ok .. i think last billing cycle I topped at about 200mb (maxis bill not here yet grrrr) and I've used it a fair bit.. surfed the net when the wife's shopping .. loaded some youtube videos of barney for my daughter(youtube defaults to low quality here when on 3g) , downloaded some updates via cydia and App store.
I'm going to do a test this month and not depend on fakeAPN to control my use and I'll see how I do.