By | October 30 2012 3:53 PM

The iPad was a hot product before Oct. 23, but after Apple’s scheduled media event in San Jose, Calif. that day, the world's most popular tablet has gotten even hotter with the introduction of the fourth-generation iPad with Retina Display and the all-new 8-inch iPad Mini.Apple opened up pre-orders for both of its new tablets on Oct. 26, and as of Tuesday, the company’s website says both the iPad Mini and iPad “4” have sold out of its initial pre-order stock.