UPS is under strict orders to only deliver the Wi-Fi model of the iPad to US customers on 3 April. Whether a few models slip through the net remains to be seen though, our experience is that once they're out in the wild a few start to turn up.
The 3G models are still set to appear at the end of April. Apple still has not announced a ship date in the UK, and is not currently taking pre-orders. We expect the iPad to go on sale in the UK at the end of April.
This story, "Apple Now Shipping iPads" was originally published by Macworld U.K..