I'm on AT&T so I'll probably get screwed if I use it for 3g tethering, but can MyWi share the wifi connection? I've tested by turning 3g off and leaving wifi on and it works, but I'm not sure if it's overriding the 3G setting and still using it. The reason I want to do this is because I have a few mac address filtering networks that I have to keep putting one time users on, which is a hassle. If I could just share my phone's wifi connection, that would be great. Does this work?