Opt-Click on arrow in sidebar to recursively expand or collapse folders

Can't see line when scrolling long lines of unwrapped text when the cursor is at end of line.

Create new tab next to previous tab when opening files from sidebar

vi style subl +line_number from command line

Make unsaved files bold in sidebar (folders section)

Name and create new files immediately, just like creating new folders

Display key bindings in menus

Keyboard shortcut to toggle column select mode, like alt/opt on TextMate