Locking new features to HTTPS is easily the most frustrating web platform move, it rules out whole classes of appspic.twitter.com/KTVdtHDBPd
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
Yes it's not following best practice of per-host certs (no wildcards) but it's a lot better than plain http.