I can't seem to comment on that blog, so I'll write my comment here. I think this is absolutely a wonderful idea in general and needs to happen soon. Once any

I can't seem to comment on that blog, so I'll write my comment here. I think this is absolutely a wonderful idea in general and needs to happen soon. Once any program a Linux user is running is compromised, essentially the whole machine is compromised. This is quite unfortunate. My main complaint is the file chooser dialog. I would much rather see a traditional file chooser - the arguments given for reinventing it don't hold up. You can pass file descriptors between processes. If you want to select a "cloud file", use fuse with some pretty integration, which is just how GNOME 3 does it right now.