The discovery of a heretofore unknown key in a FaceTime property list has raised the possibility that future versions of the app will support conference video calls. A forum member over at iPodTouchFans.com spotted a key called...; it is set to 'false' by default, but setting it to 'true' doesn't seem to have any effect. Although this would be a fairly useless feature on iPhones and iPod touches, an iPad with a front-facing camera would certainly be able to benefit from the ability to talk to multiple video callers at once given its larger screen.