Nextbit Systems Inc. has unveiled its latest Android smartphone, which has been designed to manage storage and backup so you don’t have to. The device, called “Robin,” automatically moves files and apps to the cloud. The Robin’s software works closely with Google’s Android operating system, and is designed to assess which files a user will need immediately and which can be moved to the cloud. Apps that are rarely used, for example, will be sent to the cloud to free up space for something used more regularly. Retrieval of apps from the cloud is easy and does not require reinstallation.