I'm a little perplexed that on the home page it alludes to the app being able to be run from a cloud drive rather than a portable device? Yet there is no instructions anywhere on how to do this? Is it really meaning storing data on the cloud?
I'm an Analyst and believe as Internet connectivity gets even more robust and ubiquitous, the decentralized approach of running all your apps and fetching all your data from cloud storage (what us old school people used to call a FILE SERVER) will be the norm. This is confirmed as you see Microsoft Office 2012 (aka 365) is moving towards a per month per user subscription format.
My opinion is that Google will be the leader in the end. I believe they have the best development resources and capital. So I am standardizing on their platform and currently using Google Drive combined with InSync. InSync allows you to sync files without Google converting them to Google Docs format. I assume I can easily use portable LibreOffice and get my data from my synced Google Drive. I believe there is an extension to access the Google Drive directly even as opposed to a synced local drive.
Ultimately, I don't want to have to carry around a USB drive to run my apps from. I'd like to just login to my Google Account and run LibreOffice from any Internet Connected PC and have direct access to my Google Drive. Sadly, my gut says what I want makes too much sense for anyone to have yet implemented. Hoping I'm wrong.