A #TokyoDemoFest first: a realtime laser demo titled reLase by marcan!pic.twitter.com/9p9LIrjIeq
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
Then again it's primary colors, so maybe that sensor has better than average filters :)
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.