Apple has today updated the U.S. online store to reveal that all version of the Wi-Fi + 3G iPad will ship by May 7th. The new delivery date appears to only apply to purchases made as of today.
3G models of the iPad which were pre-ordered before today reportedly continue to display "late April" as their shipping date.
Last week Apple announced that it has sold 500,000 Wi-Fi only iPad units causing it to delay the international launch until the end of May.
[Update] Apple has added some clarification to this matter in a press release.