Apart from 80 million people trying to do the same thing you're trying to do, no.
Sleep on it and try again tomorrow.
I hear that some people are having issues because there's not enough space on the phone to hold the downloaded OS before installing. So check and see if you have at least 700mb of space (I think thats approx the size? Maybe more) If you aren't updating from iTunes currently, I'd recommend doing it through there.
Actual free space required is closer to 2.5GB, not 700MB. At least from what I've seen and read since yesterday.
This is how i did it with no problems .Also, I recommend doing a tethered update, as opposed to doing "software updates" on the phone itself. Not that I have any reason to believe that this is problematic, but in my experience, having iTunes backup the device and facilitate the upgrade may be a safer way to do it.