1. A mobile device comprising computer-readable storage and at least one processor configured to execute computer-executable code stored on the computer-readable storage, said mobile device comprising: a file system comprising a first portion of the computer-readable storage of the mobile device, the file system configured to store enterprise data including an enterprise document; a second portion of the computer-readable storage configured to store private data associated with activity of a user of the mobile device that is outside of a role of the user in an enterprise, the second portion being logically separated from the file system; and an access manager implemented by computer-executable code stored on the computer-readable storage of the mobile device, the access manager configured to store the enterprise document on the file system such that the enterprise document is logically separated from the private data, and to limit access of a software application installed on the mobile device to the enterprise document based on one or more document access policies associated with the enterprise document such that the software application has different restrictions for accessing the enterprise document than the private data.