There exists smart phone apps that allow you to SSH to a machine.
Aside from the fact that this may be a really bad idea (security-wise), are there any programs/services that allow you to SSH to a machine from a phone using SMS? Would that even be possible?
I'm envisioning something that would allow you to execute a command by sending a SMS message, and receive the reply via SMS message after a few seconds. Not sure how persistence would work under such a circumstance... (pardon the purely speculative question)