While Agile touts itself as an 'un-methodology' we still refer to it as such since it includes prescriptive advice for conducting project activity. The Agile approach is to break work down into manageable chunks, and deliver each incrementally in a way that is responsive to the evolving context. Emphasis is placed on action and individual accountability.
Agile comes in many "flavours" such as Scrum. It is rapidly increasing in popularity as a delivery methodology, particularly in software development. Adherence to Agile and its various flavours is accommodated in TCP, and numerous Agile principles are applied to projX, our custom methodology.