A couple examples: I'm trying to set SmartActions to text my google voice number (which forwards to my google mail) to remind me to charge my phone if it gets below a certain percentage (SmartActions has the option to text but none to use email, hence the workaround). I'd like to use GV to send the text so I don't have to pay for it. In addition, SmartActions has an option to "auto-reply" to text messages (for example, if you are driving, you could have it auto-reply that you will reply when you reach your destination as you don't drive and text). This also uses the native text messaging app.