Telstra in Australia on the IPhone has better coverage, Optus can be cheaper but the coverage isn't so good. I wouldn't be buying the iphone without a data plan as it can get rather expensive.

Anyone used this software before, if so, did it work ok?!

http://www.iphoneunlockuk.com/

you dont need to buy anything............its free !!

http://www.iphonehacks.com/jailbreak_iphone/

evrything you need is in the link

U used that free one urself tho?!

i have yes........very very easy to do.........u cant break the iphone messin with it.......if u do, just simply restore and start again

Okie dokies, ta mate