I've had GV since it was GrandCentral and I still can't make heads or tails of it. I have my GV number, SkypeIn number, plus my regular phone number. All three are using some form of VoIP yet all negotiating takes place over 10 digit number. I thought it would be a great way for me to recieve calls while travelling but the utility is limited at best. Fring is moderately useful in being able to link MSN, Skype,  and SIP. But GV is left out.<p>I'm still waiting on one true phone number to rule them all. Until then I'll continue to use Skype and check my GV mailbox.