[edanm]

One of the biggest shortcomings of vim is the lack of a good ido-mode style file-opener. People seem to rave about command-t, although getting it set up on Windows proved too annoying for me.

FuzzyFinder is nice, but graphically it's a mess. Like everything else in vim, really.

[jrockway]

This is the biggest meta-shortcoming of vim: the fact that it doesn't come with a built-in programming language. This forces extension authors to bring their own, with the expected consequences.

[adgar]

It has vimscript, but vimscript is at best emacs-lisp's inbred nephew who is just as old but huffs glue and has sex with chickens.

[gnosis]

Actually, you can also use mzscheme, perl, python, ruby, and lua to script vim.

[esk]

Indeed, but that's what the grandparent is saying—you need to bring your own language to the party.