after a bit of messing around i managed to get it working over 3g...cant go through the skype app though..im having to use "fring"
Best to still have "skype" app installed so that you can add contacts.
Tested from iphone to andriod..sound worked fine, but no video.
Tested from iphone to laptop..again sound worked...I could see vid on the phone but laptop couldnt see anything.
but important part is that this works over 3g