I've released a new sample at XNADevelopment.com today for creating and loading tiled levels into your game quickly and easily. I originally got the idea from a Bubble Bobble clone that was released to the community quite a while ago. In it, they had defined their levels using using just text. I thought it was a great idea so I began working on my own version of that idea.
Looks Level to Me demonstrates a simple method of creating a text only level editor. Too often when making games you spend so much time creating the supporting editors that you never get around to your game. This was an effort to combat that and give you a simple way of creating tiled levels with just a little work (and if you really wanted to, it wouldn't be that hard to slap on a front end to create the files either...).
The RPG sample picture on the right is using these amazing prototype tiles available from LostGarden. This is definitely a site you should get familiar with as a new game developer. With his free sprites, prototyping challenges and all around game development advice, it's definitely a great place to have bookmarked.
Hopefully this is useful to someone out there, I had a lot of fun making it and I've already found several places where I've used it in my own prototypes. Feel free to leave any comments you might have. I love hearing what people have to say, both the criticisms and the encouragement. I run XNADevelopment.com for the community so it helps me a lot to hear from you guys.