I'm on vacation and there's no nearby wifi hotspots. My only option is to enable tethering for the month. But my laptops iTunes is not updated and won't connect to my iPhone 4. So if I enable tethering and I need iTunes 9.2 I will have just wasted my money. Also my laptop dies not have Bluetooth. So if I enable tethering on my iPhone, will it work on my laptop with just the data cable?