yup...right here. The tethering, I did lose,(even though option is still there) but I haven't really tried to look into getting it to work again. Don't ever use it. Make sure you have app sync and sync up your apps thru itunes before you update. Update it and use blackrain. And then make sure you have the app sync 3.1, and resync. If certain apps don't work, dowload again. That was my problem. I didn't really lose any apps, but had to redo a couple on mine for some reason. Guessing the file structure changed when I updated to 3.1.2.