I found a few sites that seem to offer cloud computing, but with a OS. One is icloud (icloud.com) which I'm currently trying out. It's free (3gb so 1 more gb than dropbox) and it looks like a windows (or linux) OS where you can install their free software (write for word docs, sheet for excel, etc).
Looks quite interesting as you can watch movies and browse the web in that. Plus it has the social media, mail and other features. Could also be a more secure way to do private data when using public wifi

not sure if there are other options out there, but something where I can access my files from anywhere without having my server on and making it easy to keep sync is nice.