This is a pretty uninformed post. Sure there are a lot of similar applications out on the market, but they differ from each other in a lot of ways. In terms of a WiFi tethering app, I can say that I've used this one as well as one of the paid version. I'm sticking with the paid version. It's more stable, I get faster speeds, and just like it a little more. There are a lot of things out there that are similar, but with major differences. Nobody is making money off of someone elses creating or invention, that would be illegal. And if it were illegal, we would all be driving Fords.
Claiming that you're "sickened", is a little over dramatic don't you think?