http://9to5mac.com/2013/06/11/subtle-features-details-in-ios-7-and-mavericks/
Lots of little tidbits about Mavericks and iOS 7.
Mavericks has an iCloud folder now that you can just drop files into like a normal folder. I wonder if it can be placed in the Dock? Or if it's robust enough to replace DropBox?
Do Not Disturb on Mavericks can now be scheduled like in iOS. Whoo!
Dictation can have an "offline" mode where it optionally downloads all the data required to do the dictating without an internet connection. I really really hope they offer a similar feature for Siri on iOS to let her understand simple commands that don't need internet like timers and reminders.
In iOS 7, the multitask screen works horizontally! If only the homescreen could rotate too.
Night color mode in Maps. I assume it can be automatic to change at a certain time. My old Garmin switched to night at exactly 6PM and back at 6AM.
When a timer is running, it shows the remaining time on the lock screen.
Some good stuff there I must say. Who knows what else will make it by release?