Some rumors about the next generation of the iPad are almost practically certain, as it has at least one camera, while others are a long shot, as it will have many, many ports and connectors.
However, nothing compares in the wild history that its display will have four times more pixels, with a resolution of 2048 × 1536, thus becoming a Retina display.

According to IDC research manager Tom Mainelli, this amazing resolution is sure to arrive in tabletmas only in the 2012 generation. "Our sources say Apple asked its suppliers to start working on displays with this resolution for the iPad 3," he said. the analyst, according to the Digital Arts.
IDC forecasts indicate that the iPad should sell 44.6 million units throughout the year, which indicates an absurdly great need for components.
“I don't think anyone is ready to produce screens at this resolution in large quantities right now.
And Apple is going to need huge volumes for the iPad 2, ”said Mainelli.
(via 9 to 5 Mac)