(define-key map [(meta down)] 'ido-next-work-directory)
(define-key map [backspace] 'ido-delete-backward-updir)
(define-key map "\d" 'ido-delete-backward-updir)
+ (define-key map [remap viper-backward-char] 'ido-delete-backward-updir)
+ (define-key map [remap viper-del-backward-char-in-insert] 'ido-delete-backward-updir)
(define-key map [(meta backspace)] 'ido-delete-backward-word-updir)
(define-key map [(control backspace)] 'ido-up-directory)
(define-key map [(meta ?b)] 'ido-next-work-file)