In this http://cboard.cprogramming.com/showthread.php?t=74563 thread, bubba has a screen shot of an editor he made for a "Zelda"-type game.
This got me thinking (a rarity, I know!), what kind of features do you guys think an editor should have? What are some of the pitfalls and triumphs you've had in creating your editors?
Happy coding!
-maxthecat