[pilif]

Many points of the article are related to conflict resolution and CoreData sync, both of which features that are a) incredibly hard to get right and b) practically unsupported by Dropbox. Dropbox' method of conflict "resolution" is to keep to files around and its method of synching databases is to not do it.

There are other places where Dropbox has advantages over iCloud (like doucments being shared between applications, even though the dropbox api seem to move away from that and on to sandboxed application folders), but for the points made in the original article, Dropbox provides no help at all.