So what's your point?

I second that. Google Voice + Gizmo5 is working pretty well for me on the iphone using siphon. Free incoming calls (gVoice click to call), call quality is not to shabby, slight delay but its manageable. without using any cell minutes.

more info here: gizmo5.com and their blog: http://gizmo5news.blogspot.com/ quite cheap indeed.