I'd love to see this get file path autocompletion like neocomplete does: https://github.com/Shougo/neocomplete.vim
That would mean that if you type / it would launch path autocompletion instead of word autocompletion? I like the idea, but I don't think this should be part of autocomplete+. In the future, there will be a way to use the APIs of other packages, then path autocompletion could be a separate module using the autocomplete+ API.
Moved to #30.