Word on the street is that Apple is gearing up for the next generation of Macbook Pros by ramping up production.  Digitimes reports that production will be sped up for the 15′ models in April, with the 13′ models following in June:

As Apple will start mass producing its 15-inch MacBook Pro in April, sources from the upstream supply chain have pointed out that the company’s orders for the 13.3-inch model are far higher than those of the 15-inch, indicating that Apple is more focused on the 13.3-inch notebook segment.