I wonder if the Geogram ONE is overkill for my project, I don't need GPS or an accelerometer. I just need the bare bones transmit and receive. I already own an Arduino, accelerometer and GPS module. Also, forgive my lack of knowledge but is 2G standard? I hear about 10g 5, 4, and 3g but never 2g or lower. I've heard of the SM5100B Evaluation Board by sparkfun and the GSM Playground but I don't know the differences or the any info on the ease of use. I'm a noob at all this, I first picked up an Arduino in November.