I bought it and installed Tetherme on my iPhone 4S but I can't seem to connect with my iPad 2? Is there something else I need to install? I only bought the $5 version.
If it's any help, I just installed it on my iP4 / iOS 5 and it works. I do notice that it sometimes takes a while for my iPad 2 to see my iP4. I still prefer MyWi. I used to use MyWi on 4.3.3 but now I don't want to pay for the newest MyWi so I'll stick with TetherMe since that's the native tethering setting anyway.