Apple's iPad 3G to hit U.S. market on April 30

Models of the much-hyped iPad tablet computer that can connect to the Internet through a cellular network will be available in stores on April 30, in the United States , Apple Inc. confirmed on Tuesday.

In a statement, Apple said iPad models featuring 3G wireless connectivity will be delivered to U.S. customers who have pre-ordered on the last day of April, as well as being sold in Apple retail stores starting at 5 p.m. local time the same day.

The iPad 3G, which also have Wi-Fi wireless connectivity, will start from 629 U.S. dollars for the model that has 16GB memory and cost as high as 829 dollars for the 64GB model.

After Apple first rolled out iPad in the U.S. market on April 3 with Wi-Fi only models, more than 500,000 of the touch-screen devices had been sold in the following week.

Unexpected strong demand has prompted Apple to delay the international release of the gadget by one month until the end of May.

Apple on Tuesday said it will announce international pricing for iPad and begin taking online pre-orders from overseas customers on May 10.