Does Sim4Travel only use the +44 assignment from UM, but have their own agreements....just noting from the fact that their list of Free Destinations isn't quite the same
(Plus there seem to be less issues reported here than with UM)
Also anybody hear about their acquisition by TruPhone
http://www.totaltele.com/View.aspx?ID=9768&t=1
If Truphone manages to integrate VoIP over GSM this offer could get interesting