When Apple dropped the second developer preview of Mountain Lion on Friday it didn't see fit to include release notes, instead leaving it to us and the rest of the blogosphere to dig up the new features ourselves. The big ones are clearly Twitter alerts in the Notification Center and the introduction of tab syncing in Safari through iCloud. The latter of which should sooth iPhone fans that were jealous of Chrome for Android. Smaller enhancements were also turned on, including warnings when a program asks to access your contacts and location-based alarms in the Reminders app -- which can be shared with your iOS-based mobile device as well. We'll keep looking for more, but let us know you discover any new features in the comments.