Iâ€™m in the USA with AT&T. I have an ( iPhone 2G with AT&T ) & (iPad WiFi + 3G & NOT JAILBROKEN). Yes the iPhone is â€œoriginal iPhoneâ€ BUT all 2G iPhones have AT&T UNLIMITED data plan. When the iPad 3G came out, if you wanted 3G connections when there was no WiFi available, AT&T charged $$$ for a month-by-month iPad 3G DATA plan. There WAS a way around this iPad $$$ data charge by swapping your iPhone SIM card and putting it in the iPad ( IF ) your iPad was still on OS 3.2.x. With AT&T, the iPhone APN name is â€œphoneâ€ & the iPad APN name is â€œbroadbandâ€. If you removed the SIM card from the iPhone 2G & cut it down to the iPad â€œmini-sizeâ€ (google to see see how easy), put it into the iPad SIM tray then go to settings > cellular data, and change the iPad APN name FROM â€œbroadbandâ€ TO â€œphoneâ€ then restart and you now had UNLIMITED 3G data on your iPAD. BUT - â€œNo good deed goes unpunishedâ€ !!! When Apple updated the iPAD to OS 4.2.1 they â€œhid and/or removed accessâ€ to the iPADâ€™s APN setting thereby making it impossible to change APN names on the iPAD. There a many methods to access the â€œhiddenâ€ APN settings on an iPHONE - but does anyone know a method now to access the â€œhiddenâ€ APN setting on an iPAD running 4.2.1????