A while ago I was thinking about different features for Todo 4.0, and one particular one crossed my mind: Have the application send a text message to my cell phone when a task is due.

I did a bit of digging around to see how it was done. Generally, you have something called an SMS Gateway that allows you to do exactly that. (SMS is the Short Message Service that allows you to send short text messages on the telecommunication network. The problem with this is that SMS Gateway hardware isn’t exactly your standard fare – you can’t pick up an SMS Gateway at your local big-box mart. The other option to owning your own equipment is to purchase bulk messages – usually at the cost of one tenth of a cent to a cent per message. Again, this costs money