Seems like they're taking Dropbox a step further and creating an OS-like application that will run across most types of machines, rather than just a web service

Seems like they're taking Dropbox a step further and creating an OS-like application that will run across most types of machines, rather than just a web service/finder plugin. Which is an interesting idea given the advance of thin clients/chromebook-like devices, but will require cheaper and faster internet connectivity, and as you point out, security. I guess I can see this working in the corporate environment where the client machines will always be connected to the internet, and will really only be used for web browsing, word, excel, and ppt (a few 10s of gigs), but I'm very doubtful on its ability to penetrate the personal market. Personally I have absolutely no reason to spread my 100s of gigs of docs, music, and photos across yet another set of servers...and pay a yearly fee for the convenience of having a slightly thinner laptop and not having to plugin my time machine backup every week while opening myself up to trusting another third party service?