GSM / GPRS Shield
Features Arduino Compatible GSM / GPRS Shield
Application for Arduino experiment and DIY projects
Other Fully compatible with Freaduino/Arduino and Mega 2560,
Quad-Band 850/ 900/ 1800/ 1900 MHz,
Size: 68.33 x 53.09mm
1 x Quad-Band wireless antenna
Would that function with a NZ Provider. I like the idea of TXTing with a robot.