MAILBOX - Email service Provider app design for iOS.

Hey folks!
The Full Project is available on Behance
Mailbox is an email service provider company whose goal is to provide service like sending the email and sharing events and documents with phonebook contact list without even having a Mailbox account. It has a lot of helpful facilities that makes Mailbox different from all other email service provider application. And this is how to make this concept into a concept design, Take a look and let me know what do you think about this project.
i am also available on Skype : samiul783 for any discuation about your proejct.
For better view check @2x or press 'Z' button and press 'L' if you like