I know it's probably easiest to just get a cheap prepaid GSM phone for use overseas, but I'm curious if anybody has actually successfully used a DInc overseas with only wifi (no CDMA roaming)? My SO and I both have DInc's. Let's say I am overseas in a hotel w/ only wifi, and she is in the US. - Can we text each other using Google Voice to Google Voice? - Can we call each other for free using Skype to Skype? What about Fring? - Any differences between Skype and Fring? - What does the call sound like on a cell to cell Skype or Fring call? Is the quality decent? What if me and the SO are both overseas and both only have wifi. Can we still text and call each other using GV, Skype or Fring?