I, myself, ordered the Wifi version only, even though we have great 3G coverage in Belgium.
Why?
1 and only reason: I have a smartphone with wireless tethering enabled (HTC Touch Pro2) which uses my PAYG "Mobile Vikings" data pool. Price? 2GB/months + 1000 texts for 15€ per month. Charge whenever you want.
So, I don't feel the need to pay an extra 50 bucks to get something I won't use...
You might be able to do this in Australia, check it out
