The new Google Drive is much better for mobile and android devices. A vast improvement . You can view all documents in your drive and manage them from there, including putting them in folders, and sharing.
Go to: g.co/getdrive
You can press the pencil to edit and then you can download the Google docs app from itunes so you can edit documents the same as editing on a laptop, and the free google sheets app from itunes and you can edit spreadsheets.
Gotta love Google. Getting better the time.