I used to own a GSM modem. It could in principle be hooked-up to a microphone and speaker to make voice calls; I used it only for SMS. It accepted AT commands from a serial port. You had to put a SIM in it.<p>Apart from all the funky web-interfaces (with their security defects), isn't that basically what this GoIP-1 device is? Like, you can use it to send SMS; but it's not <i>free</i>, it's charged to the SIM account, right?<p>So if you're stupid enough to put the web interface for this thing on the big, bad internet, then strangers can use your SIM card to send "free" text messages. But much the same would happen if you left your phone on a park bench.