I have no idea what I’m getting myself in to, but would it be difficult to make a small shield/addon for a spark-powered device that could give it web access using cell phone networks? Something smaller than a portable hotspot, or that could be integrated in a space-conserving manner optimally.
I like Adafruit in general but this one puzzles me: That GSM module only works with 2nd generation GSM which in the US is only T-Mobile (and only because they don’t have enough capital to upgrade). A 3rd or 4th gen GSM module would be better.