OneDrive for Business is part of the Office 365 package for educational institutions. It provides wonderful collaborative capabilities, particularly when combined with Office 2016.
Microsoft has been working to improve the sync engine for quite a while and a new client for Windows and Macs has been released for those who signed up for the pre-release trial. An overview is available from the OneDrive Blog.
Selective syncing with a local drive and enhanced sharing capabilities are just two excellent new features.
Collaboration with multiple users within the desktop program (rather than just in the web version) is now possible with Word, PowerPoint and OneNote if the document is stored in OneDrive. Not only can you see who is co-editing the file, you can click on their icon to open a Skype video conversation (and more). This overview explains many of the enhanced features.
The enhanced features will enable even better anywhere anytime learning and work.