Atom package
Open files and directories à la Emacs ido-mode. Can also create new files and directories if they don't exist. Integrated autocomplete-plus via tons of hacks.
Bind loaded:show like this:
'atom-workspace':
'cmd-o': 'loaded:show'
loaded:show opens a panel where you can type in the path to a file or directory. If the path does not exist, the invalid fragment will be highlighted.
loaded:autocomplete: Autocomplete using the highlighted suggestion.
loaded:open: If the path points to a file, open the file. If the path points to a directory, add the directory as a project in Tree View. Autocomplete first if there's a highlighted suggestion.
loaded:open-or-create: If the path does not exist, create the necessary files and directories before calling loaded:open.
loaded:backspace: Delete the character preceeding the cursor. If it is a path separator (e.g. /, \), also delete the preceeding fragment until the previous separator.
loaded:cancel: Close panel.
Default keybindings:
'atom-text-editor.loaded.autocomplete-active':
'tab': 'loaded:autocomplete'
'enter': 'loaded:open'
'shift-enter': 'loaded:open-or-create'
'backspace': 'loaded:backspace'
'escape': 'loaded:cancel'