@bascule Performance is generally not an issue here. People want to do things like 1, they should do things like 2: https://gist.github.com/1783475
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
@bascule Performance is generally not an issue here. People want to do things like 1, they should do things like 2: https://gist.github.com/1783475