- Forex changes - Important emails - Important tweets (twitter SMS does not work in many countries) - Important RSS feeds - Google News alerts on certain keywords - Security alerts e.g. when someone hacks into some of my accounts - Stocks alerts - Important reminders from iCal, configurable not all like google cal

Would be cool to have a basic SMS altert app that can connect to many web services.

You can build a demo with Nexmo.com, the wholesale SMS API with gobal reach and direct to carrier model. (disclaimer: I work for Nexmo)