I've been put down by iCloud when it came out and kept using Dropbox instead. I mostly need to synch files between macs and eventually sneak-pick them on mobile devices. I don't take lots of pictures, I'm not an iWork user and most of all I need to share PDF files, Illustrator / Photoshop files and source files as I'm a programmer. Will the upcoming "iCloud Document Library" work like Dropbox allowing me to sync and share any kind of file even when not directly supported by an iCloud-linked app? Thanks.
Maybe I didn't make it clear enough. I don't want to share my documents with other people I want to share them among my devices. The problem with iCloud as it is now is that it doesn't let me manage any kind of file that I like, but only certain formats, while I'd like to synch among my two macs, my iPad and my iPhone files like .zip files, .ai (Adobe Illustrator) files, .avi movies, source files of software I write and so on, hence not being limited to "sync photos" or "sync Pages document", since those are not kind of files that I'm interested in sharing among devices.