ArcGIS for Windows Phone application 2.6 published October 2012.
See the new ArcGIS
Resource Center for details.
ArcGIS for Windows Phone extends the reach of your GIS from the office to the field.
It includes an application for Windows Phone devices that you can download for free
from the Marketplace
and explore maps hosted on ArcGIS Online
and ArcGIS Server.
Using the ArcGIS API for Windows Phone, you can develop focused applications for
Windows Phone devices that can be deployed within your enterprise or to the public