You remember Vonage right? The trailblazing VoiP company is still around and appears at first glance to have instigated a bit of coup in the battle for VoiP calls over AT&T connections. Unfortunately they haven't, at least not yet. See, the free Vonage Mobile app just added to the iTunes App Store for the iPhone and iPod touch has been approved for making international calls over AT&T's cellular network (take that Skype) in addition to WiFi. Unfortunately, we're not talking about SIP calls over EDGE/HSDPA data. Like the rejected Google Voice app, if you're out of WiFi range but still have voice service then Vonage Mobile will redirect your international call (entered directly into the App or selected from your address bo
