My brother and I are collaborating on a script. We started by emailing the script back and forth, making changes and additions and so-forth, but this quickly became unweildy. I'm looking for a method of collaboration that will allow us both to access the same document. But the tricky bit is that we'd like the document to be available on both PC and iPad. And it has to be very, very cheap. As far as I can tell, iCloud doesn't allow sharing between accounts, so while I can access the same document on my PC and on my iPad, he can't. Dropbox allows us to download into something like Pages, but we then can't get it back up there again from the iPad. Google docs would have been the perfect solution as it's editable on both iPad and PC, however my brother can't get onto it on his laptop and we can't work out why it doesn't work. We kinda need to get it up and running in the next day or so as deadlines are looming! Does anyone have any suggestions?