arrrrrgh|! your very tempting for me to download files and folders. if you thought about encryptions i hear cloudfogger to be a superb Pre-Cloud encryption method thats offered for free. You might want to look into it for Files & Folders. This would be an ultimate seal the deal!
The password protection is a good thing to have not that I would ever use it as nobody else but me uses the playbook but me.
Also i can confirm that the fix for the box account works, so all in all a nice upgrade to this already good app.
Can't wait for skydrive integration and then it will be complete.