The other night, I set up my iPhone 3G to tether over Bluetooth with my MacBook (running Tiger). While Apple only officially supports tethering on 10.5+, BT tethering on Tiger works fine. Last night, I upgraded my iPhone to 3.0.1. The first time I upgraded broke the phone, and I had to do a complete restore. Today, I can no longer tether my iPhone - the option to Connect is greyed out, and nothing I do can force them to connect. If I try to connect from the phone, they connect for a second at best, but the connection fails. I'm doing another restore right now, but I don't have much faith that will solve the problem. Any other thoughts/advice?