# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2012-03-20 21:52:09 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/182223024676802560) RT @verge: GSMA backs cell-to-Wi-Fi roaming technology using SIM authentication http://t.co/evi5PNjL