I just read this on the 37Signals “The Signal vs. Noise” blog and just loved it. Thanks to Jason for posting this on Dec. 9th.
“If you find yourself talking more than walking, shut up, cut the vision in half, and launch it. You can always fill in the gaps later. In fact, you’ll know more about what gaps need to be filled after you’ve launched “half a feature” than if you tried to fill them in before launching anything.”