With only 2gb of space, what good is it?
Well... With referrals you could earn more free space.
Also, 2Gb is 2Gb after all. Documents and sheets do not take that much space.
You can always choose local backup or Windows SkyDrive to backup media files (movies, etc.).
By the way, Roro, you can test Mozy after all. If you don't like it, drop it