Google killed sparrow because Gmail is better than sparrow Google din't kill You...

dilipray on March 15, 2013 | parent | context | favorite | on: Mailbox Is Joining Dropbox

Google killed sparrow because Gmail is better than sparrow Google din't kill YouTube because YouTube is better than Google videos. Facebook dint kill instagram.

So,I think Dropbox has just acquire mailbox not for killing it but to enter a different domain.