Monodevelop contains a kind of TODO list that lists all comments marked as TODO. It would be gratly beneficial to allow including NotImplementedException occurences on the list - such as Resharper's TODO list does.

This feature would be VERY helpful in doing test-driven development, since it allowsquickly answer the question "what next?"

Another reason is that you don't want to have NotImplementedExceptions in your final production code, so it's good to keep track of them.

Ability to grab and move debug cursor to any possible location.

The existing immediate-window and expression evaluator should be improved:

- Add full code-completion and syntax highlighting
- Make the evaluation engine more robust (currently many statements can`t be executed)
- Allow Linq-Statements to be executed

Maybe it would be the best to integrate the Compiler-as-a-Service to accomplish the above improvements.

Full support for F# from within MonoDevelop

Context actions & code analyzation like R#

git addin works great but there are some things missing:
- stash and stash-pop a changeset
- git submodule adding/updating/removing
- Revert (to) revision $foo (in the git log view) doesn't work (throws a NRE)

Polish the MSBuild/xbuild support so it can be the default since 2.10 onwards.

Better vim support within IDE similar to ViEmu for visual studio.

This is a really productivity booster:
http://blogs.msdn.com/b/vseditor/archive/2009/05/25/the-new-box-selection-now-with-multi-line-editing.aspx

The autocomplete experience in MonoDevelop is great 95% of the time. The other 5% of the time, I won't get good auto-complete inside a lambda or delegate body, or I'll be missing classes/methods in a reference that I just added until I restart MonoDevelop. Good start--it just needs some significant investments in quality/completeness.

Provide tear off tabs, like VS 2010 does, for use on multiple monitors.

MonoDevelop already has too many features many of which just add to the general instability of the app. I propose a complete moratorium on new features until MD can be used for a full day of development without a single crash.

I would like support so I can import the Visual Studio settings file for at least my Colors and Font settings and perhaps overtime even more. This file format is xml based and there is no reason it can not be easily supported. Most MonoDevelop users are coming from Visual Studio or we go back and forth between the two, having the same look & feel is very important.

Allow connecting to a DB and getting full LINQ code completion to query it.

This is really the only thing holding us back from using MonoDev on our Mac's full-time. The hard part here, of course, is the development fabric simulation environment - not sure if that's even possible, but I figured I'd throw it out here.