While I agree with your central point that Dropbox faces competition (still, who does't? this isn't inherently bad) note that as of yet iCloud doesn't exactly l

While I agree with your central point that Dropbox faces competition (still, who does't? this isn't inherently bad) note that as of yet iCloud doesn't exactly let you solve the problem of syncing any document across devices. Although I'm assuming this will either become integrated or could be made possible via the iCloud developer API.