Mailbox founder and Orchestra CEO Gentry Underwood believes Mailbox, the popular mobile email app, will have to come to the web and other platforms to stay competitive against other services.
Like every competitive application, Mailbox is up against some worthy opponents and will need to move to every platform with decent market share. We noticed this trend with Facebook back when it started moving to mobile.
Mailbox gained lots of usage because of its clever and unique email experience and the fact people who downloaded the app were put on a list. This sense of importance and grouping worked with Pinterest too, when they had invite only settings.
We expect a web application will come to the Windows 8 store, Chrome and other browsers. Mailbox may be redesigned more times for the web to work with different user experiences.
Source: The Next Web