Yep....pic.twitter.com/kQZfYhIT2R
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
Well its good to know its not just me. I'm on the old layout, but I don't think I have the option to switch to the beta / new layout. Pretty annoying as if I watch a stream I won't see the chat.
Thanks for letting us know, we're looking into it!
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.