I wonder if you could wire up something with Siri and http://ifttt.com/
Cool idea. It looks like Ifttt supports sms, so you could just tell siri to tell them, though it would be much cooler if Apple baked macros into the core of iOS 5. That way, you could ask your phone to filter your email on the fly, tweet songs from a playlist, or do all sorts of otherwise yet unimagined work.
“Siri, will you do my job for me?”