do you know if this funtionality will work if anyone emails files to the address?
I just tried it, and yes, files from anyone to that address are added.
What do you mean with "until now there was no method for getting files back to the Dropbox folder from the iPad"? There are bunch of 3rd party Apps that allow you to upload files to Dropbox. One of the cheapest ($0.99) and best ones is GoodReader. If the file is not already in GoodReader you can import it from a server (mail or otherwise) or just via the "Open in" dialog.
GoodReader is indeed good for reading, but that's not what I'm talking about. Let's say I want to edit a Word document and save it to my dropbox. In the Pages example I cite, without the Habilis service, you can't do it. Pages will save a copy to iWork.com, or you can export a copy that can be transferred via iTunes later when connected to the computer and THEN copied to your Dropbox. Insanity.
If you know of a third-party app that uploads to Dropbox, please let me know.
Documents To Go offers Dropbox support, but so far I've been unable to get it to log in to the site on two iPads using two different Dropbox accounts.
But that's just the problem of Pages because it doesn't offer the "Open in" dialog in it's document browser. For example you can create a Word document in Documents To Go and then open it (via "Open in") in GoodReader and then use GoodReader to transfer your files to your Dropbox. Of course DTG has native Dropbox support so this doesn't make sense in reality, but it's just an example. GoodReader is just an example too, Readdle Docs, Air Sharing HD etc. also work well. And other programs like Quickoffice or Documents to Go have built in support too.
Perhaps I'm overlooking something obvious (or it's something hidden away?), but I can't see any way to use GoodReader to transfer files to Dropbox. How are you doing this Mikey?
I haven't looked at a Readdle or Air Sharing, but unless they can access the walled-off areas where apps like Pages or Keynote (or OmniGraffle; we aren't limited to just "Office" style apps) store their files, the only reliable way to send files to Dropbox is by email.
One thing worth noting: I did get Dropbox support to work in Documents To Go. My login issue was presumably a temporary glitch.
In GoodReader go to "Connect to Servers" in the right column, tap on "Add", then "Dropbox", then enter you login data. Now you can access Dropbox with GoodReader. To upload something to GoodReader select the files you want to transfer via "Manage Files", mark and then copy them. Then open Dropbox and paste (down right corner).
But as I mentioned you're right in regard to Pages etc. The only way to transfer something from these walled-off areas to Dropbox is by E-Mail. But this seems to be an issue mostly with Apple's iWork Apps because they don't offer the "Open in" dialog like most other Apps do in their file browsers. At least that's my experience so far.
So to go back to the start of this discussion: if you just add the word "universal" to your sentence then I'm okay with it :-) "until now there was no UNIVERSAL way for getting files back to the Dropbox folder from the iPad".