Get ready for some lining up at your local Apple store this summer. Apple on Thursday unveiled their new operation system, Mountain Lion, and said it would be available to the public by this summer. The Mountain Lion will bring a lot of the features of Apple’s mobile technology to the desktop, such as the “Messages” app, which will replace iChat. Integrated into the new OS is iCloud, the software that allows any document saved to the cloud to be available on an iPhone or iPad and changes will sync with all the devices. The new OS also can sync your computer with your television, which means users can make their television an extension of the computer screen.