Ever since Apple unveiled its new operating system on Monday, OS X Lion, tech bloggers have been picking through the system's 250+ features for their favorites. The system will be available for download at the Mac AppStore in July at a cost of $29. Now that they've had a night to digest them all, we've compiled the ones that are getting the best reviews. (For a complete list, click here.)

AirDrop "By selecting a new AirDrop menu option, users will be able to send documents by dragging and dropping the document onto the picture of other users who are running Lion’s AirDrop nearby," explains Charles Hamilton at GigaOm. "Both sender and recipient will be able to confirm transfers before a document is sent, after which the document will appear in the recipient’s Downloads folder. AirDrop will be based on peer-to-peer networking, thus simplifying setup."

Mail app "The new mail app looks a lot like the Mail app on the iPad," explains Business Insider. "There's a two-column view with your inbox on the left and message preview on the right. It also has a conversations view, which shows you e-mails in the order you received them."

Mission Control This feature "combines Exposé, full screen apps, Dashboard and Spaces into one unified experience for a bird’s eye view of every app and window running on your Mac," writes Apple Insider. "With a simple swipe, your desktop zooms out to display your open windows grouped by app, thumbnails of your full screen apps and your Dashboard, and allows you to instantly navigate anywhere with a tap."

Resume "Before you had to quit apps," writes Alexia Tsotsis at TechCrunch. "Now when you launch an app in Lion – it brings you right back to where you were when you quit."

Multi-Touch Gestures "You interact directly with content on the screen for a more intuitive way to use your Mac," writes the Apple Insider staff. "New gestures include momentum scrolling, tapping or pinching your fingers to zoom in on a web page or image, and swiping left or right to turn a page or switch between full screen apps. All Mac notebooks ship with Multi-Touch trackpads and desktop Macs can use Apple’s Magic Trackpad."

Launchpad "Launchpad is more or less lifted straight off the iPad," writes Sam Biddle at Gizmodo. "Instead of having to click through to your applications folder or a select bunch on the dock, every program you have installed can be brought up and launched in iOS-style pages. Easily scannable, super simplified."

Auto Save "Lion automatically saves your work in the background without you having to do much," writes Tsotsis.

Versions "Versions gathers all your autosaved documents and lets you look at all the previous versions," writes Business Insider. "It's just like Time Machine but for individual documents."