So I want to order the iPad 2 32GB but I don't think I need 3G anymore b/c I can tether to my iPhone 4. My only question is will the speed of the Internet on the tethered iPad be as fast as it would be if I had 3G built into it? If it is I'll get it without 3G but if not...we'll see. Can someone who has tethered it please let me know? Thanks.