+Tiled I have released a very early version of a TMX map reading library for Flash ActionScript 3.0. Currently it's just in its first open beta and I'm hoping to collect some feedback on it and fix any outstanding bugs I may have missed.
I've just finished my 11-part tutorial on how to make a platformer using FlatRedBall, Glue, and various other technologies. For those of you who are using or interested in using FRB, here's a direct link to the tutorials:
A powerful yet easy to use generic tile map editor
Tiled is a general purpose tile map editor. It's built to be easy to use, yet flexible enough to work with varying game engines, whether your game is an RPG, platformer or Breakout clone. Tiled is free software and written in C++, using the Qt application framework.