Acreage calculation incorrect with ArcGIS for iPhone/iPad?

Discussion created by tkneese on Aug 1, 2011
I've run into an issue when collecting polygon features with an editable feature service with the current ArcGIS app for iphone.

When I create a polygon and the area units are set to acres (this is the only unit of measure I've tested) the number give by the app is approximately half the acreage that the actual size of the area measured.  (I've calculated it in ArcMap and other software and it gives the same result). 

The measure polygon tool is giving me the same measurement so i'm thinking its an issue with the app.  Any insight is much appreciated