Bloomberg reported today that Apple's next-generation tablet, the iPad 3, has gone into production and is on track for a March release. 

The report confirms numerous rumors that have been floating around. The iPad3, according to sources close to Apple's production side, will rock a high-resolution "Retina Display" with "pixels are small enough to make the images look like printed material", a quad-core processor, and support for 4G LTE networks. 

Apple Inc. (AAPL)’s next iPad tablet, due in March, will sport a high-definition screen, run a faster processor and work with long-term evolution wireless networks, according to three people familiar with the product. [...]

The tablet will use a quad-core chip, an enhancement that lets users more quickly jump between applications, two of the people said.

Production of the tablet began earlier this month with factories in China running on 24-hour schedules, said one of the sources. 

[Bloomberg via MacRumors]