SmartDay is a new integrated calendar for Mac OS X Lion that automatically schedules tasks into the free time in your day. It costs US$39.99 and is available worldwide through the Mac App Store in the Productivity category.

SmartDay combines projects, tasks, and appointments all in the same view. A free web version connects SmartDay to its iPad companion, SmartPad, and to an upcoming iPhone version, allowing users to stay organized on multiple computers and devices.

“SmartDay is our first Mac app and represents the culmination of four years of successful participation in the iOS app space,” says Michael Jardine, managing director of Left Coast Logic. “But our plans for revolutionizing productivity are only just beginning. In the very next versions — due later this summer —¬†we will introduce an integrated Notes system with contextual links between all items. In the fall, we’ll add drag ‘n drop contact management.”