An article in Outreach Magazine by Granger pastor Rob Wegner shares what Granger has learned over the past ten year journey to becoming a “Missional Church”:
Small and reproducing
The key to any missional success is keeping it small enough to be easily replicable. In our multiplication efforts in India, for instance, we do not seek to directly reproduce Granger clones of 5,000 member churches with massive facilities and several strata of highly trained professional staff. Rather, the average size of a faith community in India is probably 20 to 50, most likely meeting in a home or small, rented space, and is led by a bivocational pastor who has been trained in a very modular, highly organic, coaching environment. Keeping them small and highly replicable allows them to grow quickly and spread virally.
Collaborative
The mission of God is not accomplished merely in the religious sector of society or by the total strong-arming of a single local church, regardless of its size or budget. Rather, the most effective missional processes utilize a full gammut of potential partners to accomplish a core mission, including businesses, local communities, other church partners, outside organizations, nongovernment organizations and agencies, and even local and national governments. A kingdom vision includes players from every domain of society, and it requires collaboration across those domains.
Holistic
The mission of God is holistic. In poverty-stricken environments, or when working with the sick, the marginalized and the oppressed, a message of “salvation after you die” is almost offensive if it is offered only in that vein. The mission of God requires both a verbal proclamation and a demonstration proclamation.
Meaningful mobilization
Missional churches must meaningfully mobilize every follower of Jesus in well-defined steps to draw them deeper into the mission of God in the world. Genuinely missional movements demythologize the notion of specialized “commando Christians” who are an elite echelon of the body of Christ and are responsible for all the work that takes place “outside the walls.”
Disciple-making
The strength of any missional movement rises and falls on its ability to make and reproduce disciples.
You can read more here from Outreach Magazine, or visit Rob’s blog for more of his writing…
How do YOU define “MISSIONAL”?

Todd, my attempt to define “missional”:
http://sentralizedcommunity.wordpress.com/2011/12/06/what-is-missional-part-1/
http://sentralizedcommunity.wordpress.com/2011/12/08/what-is-missional-part-2/
http://sentralizedcommunity.wordpress.com/2011/12/12/what-is-missional-part-3/
http://sentralizedcommunity.wordpress.com/2011/12/19/what-is-missional-part-4/