Does anybody know if an iPhone 4 connected to another iPhone 4 or an iPad acting as a wifi hotspot will intuitively know that the source connection is 3G and that the wifi connection is only really a bridge? I ask because I personally don't want to jailbreak my iPhone 4, yet I'd love to know if this workaround lets me make FaceTime calls since I would technically be connected to wifi. I understand that I can achieve this easily through jailbreaking, but I'm more interested if Apple will build in support against this tactic or if it will work. Feel free to share your thoughts, and once the CDMA iPhone 4 is out (and/or iOS 4.3 brings it to the GSM iPhone if AT&T supports it) please try it out yourself and let us all know. Thanks!