Fancy completion all over Emacs, not just for buffers and files. https://github.com/DarwinAwardWinner/ido-completing-read-plus

Ryan C. Thompson 38008e77d9 Add debug messages for overrides hace 10 años
ChangeLog a6f28fabb0 Document changes in ChangeLog hace 10 años
README.md c430dd331d Improve some documentation hace 10 años
ido-completing-read+.el 129ad44d38 Remove spurious quotes from modeline hace 10 años
ido-ubiquitous.el 38008e77d9 Add debug messages for overrides hace 10 años

README.md

ido-ubiquitous

Gimme some ido... everywhere! This pacakge replaces stock emacs completion with ido completion wherever it is possible to do so without breaking things.

Get it from http://marmalade-repo.org/packages/ido-ubiquitous

Note that ido-ubiquitous is not enabled for org mode or magit mode, because those modes have their own built-in support for ido, which you should enable instead. Also, to enable ido for all file and buffer completion, customize ido-everywhere.