Just got this from HP, it scared me when I first stated reading, I thought my order was cancelled but now I feel reassured that it will arrive!
"Thank you for your purchase of the HP TouchPad.* Due to the overwhelming demand for this product as a result of the significant price reduction, we were unable to ship your recent order with our usual promptness.* We expect that all units will be shipped by Thursday August 25, 2011 and you will receive delivery of your TouchPad on the appropriate date after that given the shipping option you selected at the time you placed your order.
We apologize for any inconvenience this has caused.* Be the first to know when your unit ships by clicking here for your order status.
We hope you will give us at the HP Home & Home Office Store the opportunity to serve you again in the future."