Unfortunately it seems that other are having problems as well. I can only hope that this service will be fixed shortly, and that it will deliver what it promises. We expect a lot from Google, mostly due to past performance, which I think is why I expected a flawless launch. Perhaps I expect too much from Google (...although their blog service is flawless...). I guess we will see in the days to come.
Other related links:
Google Analytics - Having a bad first day?
Google Analytics Off To Rough Start