New MacBook Pro and Air models expected to create strong pressure for ultrabooks

New MacBook Pro and Air models expected to create strong pressure for ultrabooks: Apple is expected to launch new MacBook Pro notebooks with an even thinner and lighter design than existing models in April, at the soonest. When paired with the company's upcoming Mountain Lion operating system as well as Apple's MacBook Air models, the product lines are expected to create a significant threat against notebook players' ultrabooks, according to sources from the upstream supply chain.