Remember that their cloud solution is somewhat questionable.
If you enable the cloud sharing you risk getting your MS account banned if you:
"depicts nudity of any sort including full or partial human
nudity or nudity in non-human forms such as cartoons, fantasy art or
advocates, or expresses pornography, obscenity, vulgarity,
profanity, hatred, bigotry, racism, or gratuitous violence."
As an example if you're a manga artist and you use skydrive you just might find yourself banned losing access to everything. If you write a naughty story in Word with sync on you are violating their terms of service.
I am aware that it is most likely very rare that there would be massive bans. However the fact that they have already banned some users of Skydrive simply due to the content of their private files indicates that they will probably do so in the future.