Ask HN: SMS alert you want?

I made a small app for myself with SMS alerts. I'd like to make more apps like this.

Is there anything that you'd like to receive an SMS alert for that you're currently not able to?

I'm sure it exists, but SMS of specific twitter keywords in a stream. Example, the police here tweet about accidents/delays on the roads, and I don't want every one of their tweets, but it would be nice to only get the ones that are for road xyz