The best site by far for hikers who EAT FOOD is Trail Cooking & The Outdoors.
Subscribe to that blog, for sure.
Sarah posted a good overview article: The Many Methods Of Trail Cooking. The main categories:
Freezer Bag Cooking™ (FBC style) One pot meals No Cook Method Insulated mug method
If you like one pot meals you should check out the recently announced Jetboil Flash PCS.
will come in four colors—black, gold, purple, and blue …
thermochromic technology (the decorative wave on the outside of the cup changes colors as contents inside heat up) …
translucent lid to track cooking progress …
The Flash PCS canister stove will be available for fall 2009 and will retail for $99.95.
I’ll be updating my current JetBoil. These are good improvements.
Click PLAY or watch a demo on YouTube.
Still … the entire system is dangerously unstable. (The centre of gravity too high for the small base of support.) I never use it without stabilizing the unit by burying the base in the sand, or bracing it with rocks.
besthike.com 
I’ve got some pics and a short HD clip of a pre-release Flash over on Flickr, check ’em out!