More on the backbone.js part:

Models:

    Flow.Models.BaseModel

  - Flow.Models.Account
  - Flow.Models.Activity
  - Flow.Models.Attachment
  - Flow.Models.Comment
  - Flow.Models.Count
  - Flow.Models.Invitee
  - Flow.Models.ListItem
  - Flow.Models.Tag
  - Flow.Models.Task
  - Flow.Models.TrackedChange

Collections

  - Flow.Collections.Accounts
  - Flow.Collections.Activity
  - Flow.Collections.Attachments
  - Flow.Collections.Collaborators
  - Flow.Collections.Comments
  - Flow.Collections.Folders
  - Flow.Collections.Invitees
  - Flow.Collections.List
  - Flow.Collections.Projects
  - Flow.Collections.Tags
  - Flow.Collections.Tasks

Controllers:

  View:

  - FlowAccountTasksInfobarProjectsListViewController
  - FlowAccountTasksViewController
  - FlowActivityPopoutViewController
  - FlowBillingSettingsAccountsDivisionViewController
  - FlowBillingSettingsCreditCardDivisionViewController
  - FlowBillingSettingsDeleteDivisionViewController
  - FlowBillingSettingsSubscriptionDivisionViewController
  - FlowBoxDetailViewController
  - FlowDelegatedTasksInfobarPeopleListViewController
  - FlowDelegatedTasksViewController
  - FlowFolderDetailViewController
  - FlowFolderInfobarPeopleListViewController
  - FlowPopoutListViewController
  - FlowProjectDetailViewController
  - FlowProjectInfobarPeopleListViewController
  - FlowQuickSearchResultViewController
  - FlowSearchResultsViewController
  - FlowSidebarPeoplePaneViewController
  - FlowSidebarProjectsPaneViewController
  - FlowSidebarTagsPaneViewController
  - FlowSWFPhotoUploadViewController
  - FlowTaskDetailInfobarPeopleListViewController
  - FlowTaskPopoutFormViewController

  Event:

  - FlowAppEventController

  Front:

  - FlowFrontController