Develop Dropbox like application

Develop a Dropbox like app based on AWS Storage solution. Admin web interface: manage users (create/delete/activate) manage quotas per user User web interface: access files and manage files (delete/versionning/undelete/shares) Mac and Windows software: integrated into the OS to see files and work with files We'd like to add a "team" feature: - manage and group users into teams - have folders common to team (all member of a team will see the teamed folders) Basically we'd like our own Dropbox solution with a team feature. More details will be provided as we move along