20. The method of claim 14 , further comprising: retrieving from a log a third set of activities associated with content of a third content type distinct from the first content type and the second content type, wherein the third set of entries is logged in accordance with the predefined format; and displaying concurrently information based on the first set of activities and the second set of activities and the third set of activities.
21. The method of claim 20 , wherein the third content type is on-device applications and the third activity includes activating an on-device application.