Google Drive exposed something similar few months ago. http://googleappsdeveloper.blogspot.com/2012/08/allowing-user-to-select-google-drive.html http://googleap

Google Drive exposed something similar few months ago. http://googleappsdeveloper.blogspot.com/2012/08/allowing-user-to-select-google-drive.html http://googleappsdeveloper.blogspot.com/2012/08/allowing-use... Trello was amongst the firsts to add file picker support (great feature we use frequently). Funny to see that the first player Dropbox picks is Asana ..