Hello, I have the new Samsung vibrant 4G, I guess it's called a galaxy s4g, and I have a data plan with tmobile. I'm currently in a building where my data plan gets no connection. I connected to wifi with no problem, and can get on the internet BUT I cannot access any of my apps (restaurant story, papaya farm, parallel kingdom). Why not? Does tmobile only allow apps to be used with the data plan and NOT with wifi? If so this defeats the purpose of wifi because I can't access my apps with it.