Interesting idea. A few obstacles we'd need to overcome:
- Although SMS messages may be free/bundled for the mobile subscriber, they probably wouldn't be free for the other end (unless you set up the other end yourself, using another mobile device)
- The latency for SMS seems to be high (at least in places where I've lived: UK and China). I'm not sure about in the US. If latency is an issue then maybe somehow increasing the 'MTU', i.e. sending lots of SMS at the same time, would make the throughput OK.
On the other hand, maybe application-level gateways (email-to-SMS, web-to-SMS) would work better, albeit at the cost of flexibility.
- Although SMS messages may be free/bundled for the mobile subscriber, they probably wouldn't be free for the other end (unless you set up the other end yourself, using another mobile device)
- The latency for SMS seems to be high (at least in places where I've lived: UK and China). I'm not sure about in the US. If latency is an issue then maybe somehow increasing the 'MTU', i.e. sending lots of SMS at the same time, would make the throughput OK.
On the other hand, maybe application-level gateways (email-to-SMS, web-to-SMS) would work better, albeit at the cost of flexibility.