Box Android SDK is an additional service to the Box API. Box Content API and Box View API are available on the official site. Java SDK for Android devices is available with its respective repository on Github. Developers can benefit from a number of cloud resources such as calls, authentication and migration resources to create storage applications. The results to integrate storage apps include to reduce cost, improve efficiency, and sync shared files automatically.
Forget famous names like Dropbox and Rapidshare. They've been eclipsed, at least temporarily as measured by the rate of sign ups, by Mega, the new cloud storage brain child of Kim Dotcom. Check out this graphic he tweeted, January 22, claiming that Mega, "is now the biggest .co.nz site in the world!"
One of the big debates these days when it comes to cloud computing center around portability and interoperatbilty between providers. That is, if you build an application on Amazon's EC2 or Google's AppEngine or Force.com, or store your data on Box.net or Amazon's S3, how hard is it to port your application or move your data to another cloud provider? If you develop on a given platform, how locked-in, or not, are you? And beyond that, could developers benefit from having standardized APIs to develop to without having to learn a new model and interface each time. As you'd expect, there's no easy answer to this.
One of the challenges with building an application these days is the number of dependencies that application will actually have on other applications. Ideally in order to know how that application will actually perform application developers would be able to test their application against the application it depends on running in production. The odds of that happening, however, are slim to none, especially if that other application is running as a cloud service that has to be always available to end users.