Apple will introduce a high resolution Retina iPad mini and a thinner, lighter version of the standard 9.7-inch iPad during its Tuesday event, reports The Wall Street Journal, confirming months of product leaks and rumors.Apple is now readying a revamped iPad Mini with a high-resolution "retina" display. It’s also working on a thinner, lighter version of its standard 9.7-inch iPad, using a thin film instead of the glass found in existing models, based on information from the company’s parts suppliers.While a fifth-generation iPad with thinner side bezels and an overall smaller size has been widely expected, the release of the Retina iPad mini has been less certain, given