Meh, I'll stick with Dropbox. Almost every app on the planet supports it for storage and I have 20GB (FREE!). I realize Dropbox isn't all that security-focused either but I don't store any sensitive data on it, so I could care less.
Mind you I have the account set up just don't see any need to install yet another "drive" and clutter up my machines. What we need is a storage aggregator that takes all these chunks of FREE storage (Box, SkyDrive, SugarSync, GDrive, etc) and makes them appear as a single large volume...