Melissa Perri on creating better roadmaps:

“Notice here that our Roadmap does not include any specifics on how we plan on tackling these problems. This is because we are still experimenting with options- we haven’t laid out a plan to implement a set of features or solution components.”

I love the idea that the focus should be on the problem not the solution, but I know from my own experience how hard this can be when you have Sales and Marketing wanting to woo potential customers with promises of specific new features.