Sanjiv Augustine, with whom I have had the pleasure of working, has created a neat little web site about Agile Project Management, a very close relation to Agile Work. From the site:
Agile principles are also being applied very successfully to non-software development projects. In particular, the underlying values of Agile Project Management (APM) as laid out in the Declaration of Interdependence are being applied in many organizations large and small to deliver value – reductions in time to market, reduced waste; and increased efficiency, collaboration and customer satisfaction.
The main difference is the explicit role of a manager. Agile Work fits with Agile Project Management, but is more generic: any person or team can adopt and adapt Agile Work practices and principles regardless of the existence of management.