Simple Ruby Editor?

Question

This editor isn't intended for me. It's intended for teaching someone else Ruby. I largely use Emacs when writing Ruby. Does anyone know of an editor that

1. indents the current line correctly when you press tab,
2. can indent the whole file correctly (keyboard shortcut would be nice),
3. has syntax highlighting for Ruby,
4. other than that works kind of like Windows Notepad (maybe with a toolbar of icons),
5. has a built in terminal (not absolutely required),
6. has multiple editor tabs,
7. and works on Windows, Linux, or both?

Or anything somewhat close?

Edit: I'm also going to add that I'd like to be available for free (legally for an indefinite period of time). Open source wouldn't hurt.

Answer 1

Check Notepad++