I kind of agree. Although Microsoft and Google have tried this sort of thing before (and a long time ago if we include WebDAV & Web folders) there is nothing q

I kind of agree. Although Microsoft and Google have tried this sort of thing before (and a long time ago if we include WebDAV & Web folders) there is nothing quite like a successful product that gets it right and takes over to light a rocket underneath the bigger companies. If iCloud takes off most Apple users won't look at Dropbox. Those of us already using it may find we use it less and if they then add a simple, cross-platform way to share files & folders we may just move on completely. There's a lot of ifs there, but I believe that iCloud will at the least hamper Dropbox's move into the mainstream.