Apple US to release 3G+wi-fi iPad on 30 April -

Cupertino design outfit Apple said that US customers will be able to buy the wi-fi+3G models of its iPad in shops from 5PM on April the 30th.

The wi-fi+3G models will cost $629 for 16GB models, $729 with 32GB and $829 for 64GB - suggesting that doubling the memory costs $100 a throw.

Apple claims that these models will deliver 10 hours of battery life if using wi-fi, and nine hours of surfing the web using a 3G data network.

AT&T will provide the basic infrastructure for 3G with pre-paid data plans for the iPad.

Apple said it will announce international pricing and begin taking online pre-orders for iPad on May the 10th. As Apple says in a footnote, "actual results vary".