It's easy - just select the desired access level, copy this link and send it via email, instant message, etc.Link: Just a link to your wiki. Post this anywhere and people can ask you for the invite key.
Features I want in a text editor (/IDE)
Very reactive.
Integrates well in a Unix environment - you can run commands on files.
Scriptable. Like Emacs, but better.
Lets you edit files on networked machines (via ssh?).
Files presented as a directory tree on the side.
Can monitor files (e.g. log files).
Read-only mode for files.
SVN integration (i.e. being able to see older versions, svn blame, etc).
Java (+other programming language) aware:
Given a method name, you can see where it's defined.
Given a method name, you can see all callers of that method.
Given a filename and line number, you can click on the compile error to see that line number.