I paid my carrier to have native tethering for my iPhone 3GS; however 4.3.1 doesn't give wifi to 3GS users. I believe it's only enable for iphone 4. I don't really care before but i just purchase an ipad 2 and would like to use wifi to tether my ipad. Is there a way to enable native tethering (wifi)? I don't want to waste money buying MyWi or other programs.