Looks like it's mostly ONLY for things you don't mind everyone having access to as it doesn't appear particularly secure, but for sharing images etc, 10GB of free storage is pretty good! It gives you direct links which makes it handy for forums etc.

They've got iOS and Android clients as well as the usual Windows/OS-X ones, plus the API appears to be open.

http://min.us/rclQgVn

(Disclaimer: If you subscribe to the service after using that link, I get an extra 1GB of storage, but so do you :)

Still can't get it to work through the office proxy unfortunately :( - Web client works fine though.