Twitter is one of the easiest ways to tell everyone you know what you’re doing, so it was only a matter of time before the program began to tell the world where you are as well. But is that a good thing?

The site’s latest feature, Twitter Places, lets you add a location to your tweets. It can be as general as a city or neighborhood, or as specific as a restaurant or convenience store. Twitter started making its own apps, earlier this year, and Twitter Places seems like inevitable extension of that step.

An “add your location” link went live on Twitter in the U.S. last night, but full Google Maps integration isn’t working yet, and the feature doesn’t yet show you who else on Twitter is in your neighborhood. However, we’re sure these quirks will be ironed out, and once they are, is there any good reason for Twitter to be separate from Foursquare, the up-and-coming service that gives you points for checking into your favorite restaurant? It’s fun to rack up points on Foursquare, but the real point of location-based programs for smartphones is for you to tell your friends where you are so they can join you if they’re nearby. It seems like Twitter will be able to do that as well, but for many, many more users at once.

I’m betting the guys who created Please Rob Me, the website that was, for a short time, making social network location information useful to burglars, will have a field day with the fact that so many more people are about to be able to tell the world just how far they are away from their homes.

Twitter Places, via Gizmodo (Also, DVICE is on Twitter right here.)