Innovation is risky enough without working to anticipate the challenges. The best new tool I've discovered is the ecosystem map described here.

Mediapost Marketing Daily: Creating Ecosystem Maps, 2001-Jun-7, by Laura Patterson:

An ecosystem map provides a visual representation of the network. It depicts all the network members, such as buyers, competitors, distribution channels, and influencers, and graphically represents the relationship of these members to each other. A key value of the map lies in its ability to identify and visually represent these relationships.