tekgoblin writes "Apple has released the iOS 5 update on time right at 10 AM PST. To update to iOS 5 just open iTunes with your iDevice connected to your computer and press update. I recommend doing a manual backup of your iDevice and make sure all your apps are transferred to." Link to Original Source
I've never been canoeing before, but I imagine there must be just a few
simple heuristics you have to remember...
Yes, don't fall out, and don't hit rocks.