That seems to be exactly the case. This is the full passage from the email:
The next batch of units will ship no later July 30th, 2010. Based on your pre-order date (11/24/2009), you should expect your WakeMate no later than 07/30/2010, but probably significantly sooner. This is a conservative estimate; we want to provide you with a firm date. We are confident we can deliver many orders sooner and will continue working day and night to ship yours as soon as possible.
The next batch of units will ship no later July 30th, 2010. Based on your pre-order date (11/24/2009), you should expect your WakeMate no later than 07/30/2010, but probably significantly sooner. This is a conservative estimate; we want to provide you with a firm date. We are confident we can deliver many orders sooner and will continue working day and night to ship yours as soon as possible.