As I pointed out in this post, the available Surface Pro storagespace to users is significantly lower than advertised, but this is by no means a new issue.
Users simply designate one of their PCs as their "Cloud PC, " enabling them to use the available hard drive space on their own PC, giving them security and full control over their storage needs.
Many online backup services -- like Amazon's S3 -- are already available and are will only offer more space for less money in the future as the cost of data storage continues to fall.