I use vim for my day-to-day Perl 6 development, there's a pretty good (but not perfect) perl6.vim file in the vim-perl repository.
Emacs users might use the syntax hilighting from the Perl 6 enhanced cperl-mode.el, though I can't comment on its quality since I've never used it.
- links to (nearly) everything that is Perl 6.
Since Padre is Scintilla based, I would say any scintilla based editor can (Geany/Komodo/Notepad++/Notepad2...), and since scintilla is open source, with little a SMOP, any editor could support it
On Windows i use Notepad++ nearly always, even though it doesn't have a debugger.
On GNU/Linux almost any text editor can color Perl. My favorites are vi and Kate, but it's a matter of taste.
On GNU/Linux almost any text editor can color Perl. My favorites are vi
vi does not colour code any language. Don't get fooled by Linux distros renaming some non-vi editor to vi (and different distros pick different editors). That's as useful as renaming ruby to perl. You probably mean nvi, Vim, Elvis, vile, or some other vi-clone - AFAIK, all of them are capable of colour coding many languages.
Thanks - i meant vim, of course. But see above - i'm silly in general.
...And now i see that i'm silly and the question was about Perl 6.
Also is TextPad. I current use version 4 (there are later versions). I don't have syntax enabled ( actually found it annoying), but even this version can do it. And you can modify to suit your indenting preferences.