Several readers have notified us that the date for iPad pre-orders has been shifted back to April 12th, according to Apple's website. It is important to note that people who have pre-ordered before today can still expect to get their iPads on April 3rd.
Those pre-ordering today & going forward should not expect the pre-orders to arrive before April 12th. The change in the pre-order shipping status suggests that Apple has completely sold out of the original online allotment of WiFi iPads. 3G iPad models still list a shipping date of "late April."
Yesterday Philip Elmer-DeWitt reported that iPad pre-orders have topped 240,000 units, not including in-store reservations.