We were skeptical of this date, considering Apple has never held a 'quiet' launch for an iPad, however due to supply constrains it would make sense for Apple to hold a 'softer' launch to reduce large crowds/demand.
Right at midnight (EST), the Apple store also went down, which usually happens for new product launches. However, server maintenance and upgrades also cause the Apple Online Store to be taken down, so it is possible that the downtime is simply for server maintenance.
If Apple does begin taking orders for the device tomorrow, it will likely go on sale around 3:00am EST. Please follow iClarified on Twitter, Facebook, Google+, or RSS for updates.