Hey Glenn! At the moment, we don't have an exact timeline. However, we're working on adding more channels to our line up! You can submit a network request here: https://goo.gl/R8gopj We always appreciate feedback. Please, stay tuned! 
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
Hey Glenn! At the moment, we don't have an exact timeline. However, we're working on adding more channels to our line up! You can submit a network request here: https://goo.gl/R8gopj We always appreciate feedback. Please, stay tuned! 