It seems that T-Mobile is offering free weekend WiFi to all its customers for a limited time.  Nice spiff!  Apparently, all a customer has to do is surf to http://freeweekends.hotspot.t-mobile.com where they will be asked for their mobile phone number.  Once the number is entered into the system, an SMS message will be sent to the phone allowing access to any T-Mobile hotspot on weekends.

Via: MobileBurn