Message.Me
Message.Me which was auction last year for USD 1,350 just sold via Sedo for 20,000 EUR and already offers a cool service:
Their message goes as:
Get urgent or time sensitive messages pushed to your mobile without giving up your mobile number! With Message.Me, important stuff no longer gets lost in the fray.
All references: [1 - 2]
Short link: Copy - http://links2.me/~hJc1$cb