A computing device (102; 200; 305), comprising: a touch-sensitive user interface (104; 310) configured to present a unified collaborative session (120; 315; 400; 500) for two or more users (320, 325; 511-515); an authentication module configured to simultaneously identify and authenticate multiple users (320, 325) physically co-located within a collaborative environment (100; 300) such that each of the multiple users (320, 325; 511-515) can touch interact with the touch-sensitive user interface (104; 310), wherein a first authenticated user may push a user-owned content file to a second authenticated user, so that both the first and second authenticated users (320, 325) may simultaneously interact with one user-owned content file, characterized in that the computing device (102; 200; 305) further comprises: a content module configured to simultaneously provide one or more content portals (330, 340; 405, 410; 520, 530) within the unified collaborative session (120; 315; 400; 500) for each authenticated user (320, 325; 511-515), each content portal configured to enable an authenticated user to access, retrieve, and present user-owned content files (335, 345; 521, 531) within the unified collaborative session; and a profile supervisor configured to determine each authenticated user's status relative to the collaborative environment (100; 300) to assign a gradated status to the authenticated user (320, 325; 511-515) based on the determined user's status relative to the collaborative environment (100; 300) selected from a plurality of gradated statuses each including the authenticated user's physical distance and/or orientation and/or physical location relative to the touch-sensitive user interface (104; 310), and further configured to adjust access to each authenticated user's content portal (330, 340; 405, 410; 520, 530) based on the authenticated user's gradated status. a touch-sensitive user interface (104; 310) configured to present a unified collaborative session (120; 315; 400; 500) for two or more users (320, 325; 511-515); an authentication module configured to simultaneously identify and authenticate multiple users (320, 325) physically co-located within a collaborative environment (100; 300) such that each of the multiple users (320, 325; 511-515) can touch interact with the touch-sensitive user interface (104; 310), wherein a first authenticated user may push a user-owned content file to a second authenticated user, so that both the first and second authenticated users (320, 325) may simultaneously interact with one user-owned content file, characterized in that the computing device (102; 200; 305) further comprises: a content module configured to simultaneously provide one or more content portals (330, 340; 405, 410; 520, 530) within the unified collaborative session (120; 315; 400; 500) for each authenticated user (320, 325; 511-515), each content portal configured to enable an authenticated user to access, retrieve, and present user-owned content files (335, 345; 521, 531) within the unified collaborative session; and a profile supervisor configured to determine each authenticated user's status relative to the collaborative environment (100; 300) to assign a gradated status to the authenticated user (320, 325; 511-515) based on the determined user's status relative to the collaborative environment (100; 300) selected from a plurality of gradated statuses each including the authenticated user's physical distance and/or orientation and/or physical location relative to the touch-sensitive user interface (104; 310), and further configured to adjust access to each authenticated user's content portal (330, 340; 405, 410; 520, 530) based on the authenticated user's gradated status. a content module configured to simultaneously provide one or more content portals (330, 340; 405, 410; 520, 530) within the unified collaborative session (120; 315; 400; 500) for each authenticated user (320, 325; 511-515), each content portal configured to enable an authenticated user to access, retrieve, and present user-owned content files (335, 345; 521, 531) within the unified collaborative session; and a profile supervisor configured to determine each authenticated user's status relative to the collaborative environment (100; 300) to assign a gradated status to the authenticated user (320, 325; 511-515) based on the determined user's status relative to the collaborative environment (100; 300) selected from a plurality of gradated statuses each including the authenticated user's physical distance and/or orientation and/or physical location relative to the touch-sensitive user interface (104; 310), and further configured to adjust access to each authenticated user's content portal (330, 340; 405, 410; 520, 530) based on the authenticated user's gradated status.