Google's Huddle would win if it:(1) use GTalk so all Gmail / Android users already have it, (2) sms from your address book like FB Messenger
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
Google's Huddle would win if it:(1) use GTalk so all Gmail / Android users already have it, (2) sms from your address book like FB Messenger